A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.
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Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.\n (CVE-2021-3679)\n\n - hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.\n (CVE-2021-37159)\n\n - fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection. (CVE-2021-38199)\n\n - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. (CVE-2021-40490)\n\n - The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. 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(CVE-2021-20322)\n\n - Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow an authenticated user to potentially enable denial of service via local access. (CVE-2021-33098)\n\n - A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption).\n This vulnerability is similar with the older CVE-2019-18808. (CVE-2021-3744)\n\n - A use-after-free flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. 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Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.\n (CVE-2020-16119)\n\n - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)\n\n - In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References:\n Upstream kernel (CVE-2021-0920)\n\n - A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.\n (CVE-2021-20317)\n\n - An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation. (CVE-2021-22543)\n\n - An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3612)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7. (CVE-2021-3653)\n\n - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)\n\n - A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.\n (CVE-2021-3679)\n\n - hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.\n (CVE-2021-37159)\n\n - ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:\n the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior.\n (CVE-2021-38160)\n\n - arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)\n\n - fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection. (CVE-2021-38199)\n\n - inflect is vulnerable to Inefficient Regular Expression Complexity (CVE-2021-3820)\n\n - drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations. (CVE-2021-38204)\n\n - drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (i.e., the real IOMEM pointer). (CVE-2021-38205)\n\n - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. (CVE-2021-40490)\n\n - prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel through 5.14.9 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write. (CVE-2021-41864)\n\n - The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.\n (CVE-2021-42008)\n\n - The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking. (CVE-2021-42739)\n\n - An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. (CVE-2021-43389)\n\nNote that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2021-12-17T00:00:00", "type": "nessus", "title": "Debian DLA-2843-1 : linux - LTS security update", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2020-16119", "CVE-2020-3702", "CVE-2021-0920", "CVE-2021-20317", "CVE-2021-20321", "CVE-2021-20322", "CVE-2021-22543", "CVE-2021-3612", "CVE-2021-3653", "CVE-2021-3655", "CVE-2021-3679", "CVE-2021-37159", "CVE-2021-3732", "CVE-2021-3753", "CVE-2021-3760", "CVE-2021-3816", "CVE-2021-38160", "CVE-2021-38198", "CVE-2021-38199", "CVE-2021-3820", "CVE-2021-38204", "CVE-2021-38205", "CVE-2021-40490", "CVE-2021-41864", "CVE-2021-42008", "CVE-2021-4273", "CVE-2021-42739", "CVE-2021-43389"], "modified": "2023-04-25T00:00:00", "cpe": ["p-cpe:/a:debian:debian_linux:hyperv-daemons", "p-cpe:/a:debian:debian_linux:libcpupower-dev", "p-cpe:/a:debian:debian_linux:libcpupower1", "p-cpe:/a:debian:debian_linux:libusbip-dev", "p-cpe:/a:debian:debian_linux:linux-compiler-gcc-6-arm", "p-cpe:/a:debian:debian_linux:linux-compiler-gcc-6-x86", "p-cpe:/a:debian:debian_linux:linux-cpupower", "p-cpe:/a:debian:debian_linux:linux-doc-4.9", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-686", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-686-pae", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-all", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-all-amd64", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-all-arm64", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-all-armel", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-686-pae", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-686-pae-dbg", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-amd64", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-amd64-dbg", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-all-armhf", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-arm64", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-arm64-dbg", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-all-i386", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-armmp", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-armmp-dbg", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-amd64", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-armmp-lpae", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-armmp-lpae-dbg", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-arm64", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-marvell", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-armmp", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-marvell-dbg", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-armmp-lpae", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-rt-686-pae", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-rt-686-pae-dbg", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-common", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-rt-amd64", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-common-rt", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-rt-amd64-dbg", "p-cpe:/a:debian:debian_linux:linux-kbuild-4.9", "p-cpe:/a:debian:debian_linux:linux-libc-dev", "p-cpe:/a:debian:debian_linux:linux-manual-4.9", "p-cpe:/a:debian:debian_linux:linux-perf-4.9", "p-cpe:/a:debian:debian_linux:linux-source-4.9", "p-cpe:/a:debian:debian_linux:linux-support-4.9.0-14", "p-cpe:/a:debian:debian_linux:usbip", "cpe:/o:debian:debian_linux:9.0", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-marvell", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-rt-686-pae", "p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-14-rt-amd64", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-686", "p-cpe:/a:debian:debian_linux:linux-image-4.9.0-14-686-dbg"], "id": "DEBIAN_DLA-2843.NASL", "href": "https://www.tenable.com/plugins/nessus/156163", "sourceData": "#%NASL_MIN_LEVEL 70300\n#\n# (C) Tenable Network Security, Inc.\n#\n# The descriptive text and package checks in this plugin were\n# extracted from Debian Security Advisory dla-2843. 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Fixed in Ubuntu Linux\n kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.\n (CVE-2020-16119)\n\n - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to\n improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for\n a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon\n Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon\n Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W,\n MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)\n\n - In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This\n could lead to local escalation of privilege with System execution privileges needed. User interaction is\n not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References:\n Upstream kernel (CVE-2021-0920)\n\n - A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the\n timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user\n privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.\n (CVE-2021-20317)\n\n - An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass\n RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users\n with the ability to start and control a VM to read/write random pages of memory and can result in local\n privilege escalation. (CVE-2021-22543)\n\n - An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions\n before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the\n system or possibly escalate their privileges on the system. The highest threat from this vulnerability is\n to confidentiality, integrity, as well as system availability. (CVE-2021-3612)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when\n processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested\n guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to\n enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest\n would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak\n of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to\n 5.14-rc7. (CVE-2021-3653)\n\n - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on\n inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)\n\n - A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was\n found in the way user uses trace ring buffer in a specific way. Only privileged local users (with\n CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.\n (CVE-2021-3679)\n\n - hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev\n without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.\n (CVE-2021-37159)\n\n - ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss\n can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:\n the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the\n length validation was added solely for robustness in the face of anomalous host OS behavior.\n (CVE-2021-38160)\n\n - arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access\n permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)\n\n - fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which\n allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for\n those servers to be unreachable during trunking detection. (CVE-2021-38199)\n\n - inflect is vulnerable to Inefficient Regular Expression Complexity (CVE-2021-3820)\n\n - drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to\n cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain\n situations. (CVE-2021-38204)\n\n - drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for\n attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (i.e., the real IOMEM\n pointer). (CVE-2021-38205)\n\n - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in\n the Linux kernel through 5.13.13. (CVE-2021-40490)\n\n - prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel through 5.14.9 allows\n unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds\n write. (CVE-2021-41864)\n\n - The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab\n out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.\n (CVE-2021-42008)\n\n - The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to\n drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt\n mishandles bounds checking. (CVE-2021-42739)\n\n - An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in\n the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. 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branch displacement computation (CVE-2021-29154)\n\n - kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP() (CVE-2021-3612)\n\n - kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts (CVE-2021-3669)\n\n - kernel: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c (CVE-2021-37159)\n\n - kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c (CVE-2021-3743)\n\n - kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() (CVE-2021-3744)\n\n - kernel: possible use-after-free in bluetooth module (CVE-2021-3752)\n\n - kernel: unaccounted ipc objects in Linux kernel lead to breaking memcg limits and DoS attacks (CVE-2021-3759)\n\n - kernel: DoS in ccp_run_aes_gcm_cmd() function (CVE-2021-3764)\n\n - kernel: sctp: Invalid chunks may be used to remotely remove existing associations (CVE-2021-3772)\n\n - kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients 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'content/e4s/rhel8/8.6/x86_64/sap/os',\n 'content/e4s/rhel8/8.6/x86_64/sap/source/SRPMS',\n 'content/eus/rhel8/8.6/x86_64/appstream/debug',\n 'content/eus/rhel8/8.6/x86_64/appstream/os',\n 'content/eus/rhel8/8.6/x86_64/appstream/source/SRPMS',\n 'content/eus/rhel8/8.6/x86_64/baseos/debug',\n 'content/eus/rhel8/8.6/x86_64/baseos/os',\n 'content/eus/rhel8/8.6/x86_64/baseos/source/SRPMS',\n 'content/eus/rhel8/8.6/x86_64/codeready-builder/debug',\n 'content/eus/rhel8/8.6/x86_64/codeready-builder/os',\n 'content/eus/rhel8/8.6/x86_64/codeready-builder/source/SRPMS',\n 'content/eus/rhel8/8.6/x86_64/highavailability/debug',\n 'content/eus/rhel8/8.6/x86_64/highavailability/os',\n 'content/eus/rhel8/8.6/x86_64/highavailability/source/SRPMS',\n 'content/eus/rhel8/8.6/x86_64/resilientstorage/debug',\n 'content/eus/rhel8/8.6/x86_64/resilientstorage/os',\n 'content/eus/rhel8/8.6/x86_64/resilientstorage/source/SRPMS',\n 'content/eus/rhel8/8.6/x86_64/sap-solutions/debug',\n 'content/eus/rhel8/8.6/x86_64/sap-solutions/os',\n 'content/eus/rhel8/8.6/x86_64/sap-solutions/source/SRPMS',\n 'content/eus/rhel8/8.6/x86_64/sap/debug',\n 'content/eus/rhel8/8.6/x86_64/sap/os',\n 'content/eus/rhel8/8.6/x86_64/sap/source/SRPMS',\n 'content/eus/rhel8/8.6/x86_64/supplementary/debug',\n 'content/eus/rhel8/8.6/x86_64/supplementary/os',\n 'content/eus/rhel8/8.6/x86_64/supplementary/source/SRPMS',\n 'content/tus/rhel8/8.6/x86_64/appstream/debug',\n 'content/tus/rhel8/8.6/x86_64/appstream/os',\n 'content/tus/rhel8/8.6/x86_64/appstream/source/SRPMS',\n 'content/tus/rhel8/8.6/x86_64/baseos/debug',\n 'content/tus/rhel8/8.6/x86_64/baseos/os',\n 'content/tus/rhel8/8.6/x86_64/baseos/source/SRPMS',\n 'content/tus/rhel8/8.6/x86_64/highavailability/debug',\n 'content/tus/rhel8/8.6/x86_64/highavailability/os',\n 'content/tus/rhel8/8.6/x86_64/highavailability/source/SRPMS',\n 'content/tus/rhel8/8.6/x86_64/rt/os',\n 'content/tus/rhel8/8.6/x86_64/rt/source/SRPMS'\n ],\n 'pkgs': [\n {'reference':'kernel-rt-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-core-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-core-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-devel-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-kvm-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-modules-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-modules-extra-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-devel-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-kvm-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-modules-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-modules-extra-4.18.0-372.9.1.rt7.166.el8', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}\n ]\n },\n {\n 'repo_relative_urls': [\n 'content/dist/rhel8/8/x86_64/appstream/debug',\n 'content/dist/rhel8/8/x86_64/appstream/os',\n 'content/dist/rhel8/8/x86_64/appstream/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/baseos/debug',\n 'content/dist/rhel8/8/x86_64/baseos/os',\n 'content/dist/rhel8/8/x86_64/baseos/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/codeready-builder/debug',\n 'content/dist/rhel8/8/x86_64/codeready-builder/os',\n 'content/dist/rhel8/8/x86_64/codeready-builder/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/highavailability/debug',\n 'content/dist/rhel8/8/x86_64/highavailability/os',\n 'content/dist/rhel8/8/x86_64/highavailability/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/nfv/debug',\n 'content/dist/rhel8/8/x86_64/nfv/os',\n 'content/dist/rhel8/8/x86_64/nfv/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/resilientstorage/debug',\n 'content/dist/rhel8/8/x86_64/resilientstorage/os',\n 'content/dist/rhel8/8/x86_64/resilientstorage/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/rt/debug',\n 'content/dist/rhel8/8/x86_64/rt/os',\n 'content/dist/rhel8/8/x86_64/rt/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/sap-solutions/debug',\n 'content/dist/rhel8/8/x86_64/sap-solutions/os',\n 'content/dist/rhel8/8/x86_64/sap-solutions/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/sap/debug',\n 'content/dist/rhel8/8/x86_64/sap/os',\n 'content/dist/rhel8/8/x86_64/sap/source/SRPMS',\n 'content/dist/rhel8/8/x86_64/supplementary/debug',\n 'content/dist/rhel8/8/x86_64/supplementary/os',\n 'content/dist/rhel8/8/x86_64/supplementary/source/SRPMS'\n ],\n 'pkgs': [\n {'reference':'kernel-rt-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-core-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-core-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-devel-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-kvm-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-modules-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-debug-modules-extra-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-devel-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-kvm-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-modules-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},\n {'reference':'kernel-rt-modules-extra-4.18.0-372.9.1.rt7.166.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}\n ]\n }\n];\n\nvar applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);\nif(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);\n\nvar flag = 0;\nforeach var constraint_array ( constraints ) {\n var repo_relative_urls = NULL;\n if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];\n var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);\n foreach var pkg ( constraint_array['pkgs'] ) {\n var reference = NULL;\n var _release = NULL;\n var sp = NULL;\n var _cpu = NULL;\n var el_string = NULL;\n var rpm_spec_vers_cmp = NULL;\n var epoch = NULL;\n var allowmaj = NULL;\n var exists_check = NULL;\n if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];\n if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];\n if (!empty_or_null(pkg['sp']) && !enterprise_linux_flag) sp = pkg['sp'];\n if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];\n if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];\n if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];\n if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];\n if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];\n if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];\n if (reference &&\n _release &&\n rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&\n (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&\n rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;\n }\n}\n\nif (flag)\n{\n var extra = NULL;\n if (empty_or_null(applicable_repo_urls)) extra = rpm_report_get() + redhat_report_repo_caveat();\n else extra = rpm_report_get() + redhat_report_package_caveat();\n security_report_v4(\n port : 0,\n severity : SECURITY_HOLE,\n extra : extra\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc');\n}\n", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2023-08-13T16:38:58", "description": "The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3929-1 advisory.\n\n - Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.\n (CVE-2017-5753)\n\n - The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID. (CVE-2018-13405)\n\n - A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before 4.14.91 and before 4.19.13 are vulnerable. (CVE-2018-16882)\n\n - In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed.\n User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-152735806 (CVE-2020-0429)\n\n - An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10.\n Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767. (CVE-2020-12655)\n\n - An out-of-bounds memory write flaw was found in how the Linux kernel's Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-14305)\n\n - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)\n\n - A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability.\n (CVE-2021-20265)\n\n - A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. (CVE-2021-20322)\n\n - An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi- device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability. (CVE-2021-31916)\n\n - The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value. (CVE-2021-33033)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack. (CVE-2021-34556)\n\n - A flaw was found in the Linux kernel's CAPI over Bluetooth connection code. An attacker with a local account can escalate privileges when CAPI (ISDN) hardware connection fails. (CVE-2021-34981)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value.\n (CVE-2021-35477)\n\n - A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.\n (CVE-2021-3640)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7. (CVE-2021-3653)\n\n - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability. (CVE-2021-3659)\n\n - A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.\n (CVE-2021-3679)\n\n - A flaw was found in the Routing decision classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition.\n This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3715)\n\n - hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.\n (CVE-2021-37159)\n\n - A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible. (CVE-2021-3732)\n\n - A use-after-free flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3752)\n\n - A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality. (CVE-2021-3753)\n\n - arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)\n\n - A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability. (CVE-2021-3760)\n\n - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)\n\n - ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:\n the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior.\n (CVE-2021-38160)\n\n - arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)\n\n - drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations. (CVE-2021-38204)\n\n - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. (CVE-2021-40490)\n\n - The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.\n (CVE-2021-42008)\n\n - A heap-based buffer overflow flaw was found in the Linux kernel FireDTV media card driver, where the user calls the CA_SEND_MSG ioctl. This flaw allows a local user of the host machine to crash the system or escalate privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-42739)\n\n - An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. (CVE-2021-43389)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2021-12-07T00:00:00", "type": "nessus", "title": "SUSE SLES12 Security Update : kernel (SUSE-SU-2021:3929-1)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2017-5753", "CVE-2018-13405", "CVE-2018-16882", "CVE-2020-0429", "CVE-2020-12655", "CVE-2020-14305", "CVE-2020-3702", "CVE-2021-20265", "CVE-2021-20322", "CVE-2021-31916", "CVE-2021-33033", "CVE-2021-34556", "CVE-2021-34981", "CVE-2021-3542", "CVE-2021-35477", "CVE-2021-3640", "CVE-2021-3653", "CVE-2021-3655", "CVE-2021-3659", "CVE-2021-3679", "CVE-2021-3715", "CVE-2021-37159", "CVE-2021-3732", "CVE-2021-3752", "CVE-2021-3753", "CVE-2021-37576", "CVE-2021-3760", "CVE-2021-3772", "CVE-2021-38160", "CVE-2021-38198", "CVE-2021-38204", "CVE-2021-3896", "CVE-2021-40490", "CVE-2021-42008", "CVE-2021-42739", "CVE-2021-43389"], "modified": "2023-08-11T00:00:00", "cpe": ["p-cpe:/a:novell:suse_linux:kernel-default", "p-cpe:/a:novell:suse_linux:kernel-default-base", "p-cpe:/a:novell:suse_linux:kernel-default-devel", "p-cpe:/a:novell:suse_linux:kernel-devel", "p-cpe:/a:novell:suse_linux:kernel-macros", "p-cpe:/a:novell:suse_linux:kernel-source", "p-cpe:/a:novell:suse_linux:kernel-syms", "cpe:/o:novell:suse_linux:12"], "id": "SUSE_SU-2021-3929-1.NASL", "href": "https://www.tenable.com/plugins/nessus/155910", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable, Inc.\n#\n# The package checks in this plugin were extracted from\n# SUSE update advisory SUSE-SU-2021:3929-1. 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Here, the non-member can trigger creation of a\n plain file whose group ownership is that group. The intended behavior was that the non-member can trigger\n creation of a directory (but not a plain file) whose group ownership is that group. The non-member can\n escalate privileges by making the plain file executable and SGID. (CVE-2018-13405)\n\n - A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts\n when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while\n processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor\n address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash\n the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before\n 4.14.91 and before 4.19.13 are vulnerable. (CVE-2018-16882)\n\n - In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a\n use after free. This could lead to local escalation of privilege with System execution privileges needed.\n User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-152735806 (CVE-2020-0429)\n\n - An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10.\n Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka\n CID-d0c7feaf8767. (CVE-2020-12655)\n\n - An out-of-bounds memory write flaw was found in how the Linux kernel's Voice Over IP H.323 connection\n tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote\n user to crash the system, causing a denial of service. The highest threat from this vulnerability is to\n confidentiality, integrity, as well as system availability. (CVE-2020-14305)\n\n - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to\n improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for\n a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon\n Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon\n Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W,\n MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)\n\n - A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux\n kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by\n exhausting available memory. The highest threat from this vulnerability is to system availability.\n (CVE-2021-20265)\n\n - A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux\n kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an\n off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this\n vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source\n port randomization are indirectly affected as well. (CVE-2021-20322)\n\n - An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-\n device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with\n special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or\n a leak of internal kernel information. The highest threat from this vulnerability is to system\n availability. (CVE-2021-31916)\n\n - The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because\n the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads\n to writing an arbitrary value. (CVE-2021-33033)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from\n kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects\n the possibility of uninitialized memory locations on the BPF stack. (CVE-2021-34556)\n\n - A flaw was found in the Linux kernel's CAPI over Bluetooth connection code. An attacker with a local\n account can escalate privileges when CAPI (ISDN) hardware connection fails. (CVE-2021-34981)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from\n kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store\n operation does not necessarily occur before a store operation that has an attacker-controlled value.\n (CVE-2021-35477)\n\n - A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the\n way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del()\n together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A\n privileged local user could use this flaw to crash the system or escalate their privileges on the system.\n (CVE-2021-3640)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when\n processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested\n guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to\n enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest\n would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak\n of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to\n 5.14-rc7. (CVE-2021-3653)\n\n - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on\n inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's IEEE 802.15.4 wireless networking\n subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the\n system. The highest threat from this vulnerability is to system availability. (CVE-2021-3659)\n\n - A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was\n found in the way user uses trace ring buffer in a specific way. Only privileged local users (with\n CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.\n (CVE-2021-3679)\n\n - A flaw was found in the Routing decision classifier in the Linux kernel's Traffic Control networking\n subsystem in the way it handled changing of classification filters, leading to a use-after-free condition.\n This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat\n from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3715)\n\n - hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev\n without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.\n (CVE-2021-37159)\n\n - A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem\n with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be\n accessible. (CVE-2021-3732)\n\n - A use-after-free flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to\n the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the\n system or escalate their privileges. The highest threat from this vulnerability is to confidentiality,\n integrity, as well as system availability. (CVE-2021-3752)\n\n - A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may\n cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl\n (KDSETMDE). The highest threat from this vulnerability is to data confidentiality. (CVE-2021-3753)\n\n - arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest\n OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)\n\n - A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat\n to confidentiality, integrity, and system availability. (CVE-2021-3760)\n\n - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP\n association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and\n the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)\n\n - ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss\n can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:\n the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the\n length validation was added solely for robustness in the face of anomalous host OS behavior.\n (CVE-2021-38160)\n\n - arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access\n permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)\n\n - drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to\n cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain\n situations. (CVE-2021-38204)\n\n - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in\n the Linux kernel through 5.13.13. (CVE-2021-40490)\n\n - The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab\n out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.\n (CVE-2021-42008)\n\n - A heap-based buffer overflow flaw was found in the Linux kernel FireDTV media card driver, where the user\n calls the CA_SEND_MSG ioctl. This flaw allows a local user of the host machine to crash the system or\n escalate privileges on the system. The highest threat from this vulnerability is to confidentiality,\n integrity, as well as system availability. (CVE-2021-42739)\n\n - An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in\n the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. 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processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service. (CVE-2017-17862)\n\n - kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially sensitive address information, aka a pointer leak. (CVE-2017-17864)\n\n - The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID. (CVE-2018-13405)\n\n - A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before 4.14.91 and before 4.19.13 are vulnerable. (CVE-2018-16882)\n\n - In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed.\n User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-152735806 (CVE-2020-0429)\n\n - An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10.\n Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767. (CVE-2020-12655)\n\n - An out-of-bounds memory write flaw was found in how the Linux kernel's Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-14305)\n\n - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)\n\n - IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.\n (CVE-2020-4788)\n\n - A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability.\n (CVE-2021-20265)\n\n - A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. (CVE-2021-20322)\n\n - An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi- device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability. (CVE-2021-31916)\n\n - The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value. (CVE-2021-33033)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack. (CVE-2021-34556)\n\n - A flaw was found in the Linux kernel's CAPI over Bluetooth connection code. An attacker with a local account can escalate privileges when CAPI (ISDN) hardware connection fails. (CVE-2021-34981)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value.\n (CVE-2021-35477)\n\n - A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.\n (CVE-2021-3640)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7. (CVE-2021-3653)\n\n - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability. (CVE-2021-3659)\n\n - A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.\n (CVE-2021-3679)\n\n - A flaw was found in the Routing decision classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition.\n This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3715)\n\n - hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.\n (CVE-2021-37159)\n\n - A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible. (CVE-2021-3732)\n\n - A use-after-free flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3752)\n\n - A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality. (CVE-2021-3753)\n\n - arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)\n\n - A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability. (CVE-2021-3760)\n\n - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)\n\n - ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:\n the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior.\n (CVE-2021-38160)\n\n - arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)\n\n - drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations. (CVE-2021-38204)\n\n - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. (CVE-2021-40490)\n\n - The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.\n (CVE-2021-42008)\n\n - A heap-based buffer overflow flaw was found in the Linux kernel FireDTV media card driver, where the user calls the CA_SEND_MSG ioctl. This flaw allows a local user of the host machine to crash the system or escalate privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-42739)\n\n - An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. 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This behavior, also considered an improper branch-pruning logic\n issue, could possibly be used by local users for denial of service. (CVE-2017-17862)\n\n - kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the\n pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially\n sensitive address information, aka a pointer leak. (CVE-2017-17864)\n\n - The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create\n files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and\n is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a\n plain file whose group ownership is that group. The intended behavior was that the non-member can trigger\n creation of a directory (but not a plain file) whose group ownership is that group. The non-member can\n escalate privileges by making the plain file executable and SGID. (CVE-2018-13405)\n\n - A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts\n when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while\n processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor\n address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash\n the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before\n 4.14.91 and before 4.19.13 are vulnerable. (CVE-2018-16882)\n\n - In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a\n use after free. This could lead to local escalation of privilege with System execution privileges needed.\n User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-152735806 (CVE-2020-0429)\n\n - An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10.\n Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka\n CID-d0c7feaf8767. (CVE-2020-12655)\n\n - An out-of-bounds memory write flaw was found in how the Linux kernel's Voice Over IP H.323 connection\n tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote\n user to crash the system, causing a denial of service. The highest threat from this vulnerability is to\n confidentiality, integrity, as well as system availability. (CVE-2020-14305)\n\n - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to\n improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for\n a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon\n Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon\n Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W,\n MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)\n\n - IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive\n information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.\n (CVE-2020-4788)\n\n - A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux\n kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by\n exhausting available memory. The highest threat from this vulnerability is to system availability.\n (CVE-2021-20265)\n\n - A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux\n kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an\n off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this\n vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source\n port randomization are indirectly affected as well. (CVE-2021-20322)\n\n - An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-\n device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with\n special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or\n a leak of internal kernel information. The highest threat from this vulnerability is to system\n availability. (CVE-2021-31916)\n\n - The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because\n the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads\n to writing an arbitrary value. (CVE-2021-33033)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from\n kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects\n the possibility of uninitialized memory locations on the BPF stack. (CVE-2021-34556)\n\n - A flaw was found in the Linux kernel's CAPI over Bluetooth connection code. An attacker with a local\n account can escalate privileges when CAPI (ISDN) hardware connection fails. (CVE-2021-34981)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from\n kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store\n operation does not necessarily occur before a store operation that has an attacker-controlled value.\n (CVE-2021-35477)\n\n - A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the\n way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del()\n together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A\n privileged local user could use this flaw to crash the system or escalate their privileges on the system.\n (CVE-2021-3640)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when\n processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested\n guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to\n enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest\n would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak\n of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to\n 5.14-rc7. (CVE-2021-3653)\n\n - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on\n inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's IEEE 802.15.4 wireless networking\n subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the\n system. The highest threat from this vulnerability is to system availability. (CVE-2021-3659)\n\n - A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was\n found in the way user uses trace ring buffer in a specific way. Only privileged local users (with\n CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.\n (CVE-2021-3679)\n\n - A flaw was found in the Routing decision classifier in the Linux kernel's Traffic Control networking\n subsystem in the way it handled changing of classification filters, leading to a use-after-free condition.\n This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat\n from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3715)\n\n - hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev\n without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.\n (CVE-2021-37159)\n\n - A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem\n with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be\n accessible. (CVE-2021-3732)\n\n - A use-after-free flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to\n the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the\n system or escalate their privileges. The highest threat from this vulnerability is to confidentiality,\n integrity, as well as system availability. (CVE-2021-3752)\n\n - A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may\n cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl\n (KDSETMDE). The highest threat from this vulnerability is to data confidentiality. (CVE-2021-3753)\n\n - arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest\n OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)\n\n - A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat\n to confidentiality, integrity, and system availability. (CVE-2021-3760)\n\n - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP\n association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and\n the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)\n\n - ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss\n can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:\n the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the\n length validation was added solely for robustness in the face of anomalous host OS behavior.\n (CVE-2021-38160)\n\n - arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access\n permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)\n\n - drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to\n cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain\n situations. (CVE-2021-38204)\n\n - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in\n the Linux kernel through 5.13.13. (CVE-2021-40490)\n\n - The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab\n out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.\n (CVE-2021-42008)\n\n - A heap-based buffer overflow flaw was found in the Linux kernel FireDTV media card driver, where the user\n calls the CA_SEND_MSG ioctl. This flaw allows a local user of the host machine to crash the system or\n escalate privileges on the system. The highest threat from this vulnerability is to confidentiality,\n integrity, as well as system availability. (CVE-2021-42739)\n\n - An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in\n the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. 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(CVE-2018-3639)\n\n - In pppol2tp_connect, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-38159931. (CVE-2018-9517)\n\n - The SCTP socket buffer used by a userspace application is not accounted by the cgroups subsystem. An attacker can use this flaw to cause a denial of service attack. Kernel 3.10.x and 4.18.x branches are believed to be vulnerable. (CVE-2019-3874)\n\n - An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario. (CVE-2019-3900)\n\n - An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040. (CVE-2020-12770)\n\n - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)\n\n - In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-154177719References:\n Upstream kernel (CVE-2021-0941)\n\n - A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem. (CVE-2021-20320)\n\n - A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. (CVE-2021-20322)\n\n - An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation. (CVE-2021-22543)\n\n - An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi- device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability. (CVE-2021-31916)\n\n - The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value. (CVE-2021-33033)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack. (CVE-2021-34556)\n\n - A flaw was found in the Linux kernel's CAPI over Bluetooth connection code. An attacker with a local account can escalate privileges when CAPI (ISDN) hardware connection fails. (CVE-2021-34981)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value.\n (CVE-2021-35477)\n\n - A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.\n (CVE-2021-3640)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7. (CVE-2021-3653)\n\n - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the virt_ext field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. (CVE-2021-3656)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability. (CVE-2021-3659)\n\n - A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.\n (CVE-2021-3679)\n\n - hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.\n (CVE-2021-37159)\n\n - A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible. (CVE-2021-3732)\n\n - A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption).\n This vulnerability is similar with the older CVE-2019-18808. (CVE-2021-3744)\n\n - A use-after-free flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3752)\n\n - A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality. (CVE-2021-3753)\n\n - arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)\n\n - A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability. (CVE-2021-3760)\n\n - A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability. (CVE-2021-3764)\n\n - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)\n\n - ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:\n the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior.\n (CVE-2021-38160)\n\n - arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)\n\n - drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations. (CVE-2021-38204)\n\n - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. (CVE-2021-40490)\n\n - prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write. (CVE-2021-41864)\n\n - The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.\n (CVE-2021-42008)\n\n - An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes. (CVE-2021-42252)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2021-12-08T00:00:00", "type": "nessus", "title": "SUSE SLES15 Security Update : kernel (SUSE-SU-2021:3969-1)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2018-3639", "CVE-2018-9517", "CVE-2019-18808", "CVE-2019-3874", "CVE-2019-3900", "CVE-2020-12770", "CVE-2020-3702", "CVE-2021-0941", "CVE-2021-20320", "CVE-2021-20322", "CVE-2021-22543", "CVE-2021-31916", "CVE-2021-33033", "CVE-2021-34556", "CVE-2021-34981", "CVE-2021-35477", "CVE-2021-3640", "CVE-2021-3653", "CVE-2021-3655", "CVE-2021-3656", "CVE-2021-3659", "CVE-2021-3679", "CVE-2021-37159", "CVE-2021-3732", "CVE-2021-3744", "CVE-2021-3752", "CVE-2021-3753", "CVE-2021-37576", "CVE-2021-3760", "CVE-2021-3764", "CVE-2021-3772", "CVE-2021-38160", "CVE-2021-38198", "CVE-2021-38204", "CVE-2021-40490", "CVE-2021-41864", "CVE-2021-42008", "CVE-2021-42252"], "modified": "2023-07-13T00:00:00", "cpe": ["p-cpe:/a:novell:suse_linux:cluster-md-kmp-default", "p-cpe:/a:novell:suse_linux:dlm-kmp-default", "p-cpe:/a:novell:suse_linux:gfs2-kmp-default", "p-cpe:/a:novell:suse_linux:kernel-default", "p-cpe:/a:novell:suse_linux:kernel-default-base", "p-cpe:/a:novell:suse_linux:kernel-default-devel", "p-cpe:/a:novell:suse_linux:kernel-default-livepatch", "p-cpe:/a:novell:suse_linux:kernel-default-man", "p-cpe:/a:novell:suse_linux:kernel-devel", "p-cpe:/a:novell:suse_linux:kernel-livepatch-4_12_14-150_78-default", "p-cpe:/a:novell:suse_linux:kernel-macros", "p-cpe:/a:novell:suse_linux:kernel-obs-build", "p-cpe:/a:novell:suse_linux:kernel-source", "p-cpe:/a:novell:suse_linux:kernel-syms", "p-cpe:/a:novell:suse_linux:kernel-vanilla-base", "p-cpe:/a:novell:suse_linux:ocfs2-kmp-default", "p-cpe:/a:novell:suse_linux:reiserfs-kmp-default", "cpe:/o:novell:suse_linux:15"], "id": "SUSE_SU-2021-3969-1.NASL", "href": "https://www.tenable.com/plugins/nessus/155930", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable, Inc.\n#\n# The package checks in this plugin were extracted from\n# SUSE update advisory SUSE-SU-2021:3969-1. The text itself\n# is copyright (C) SUSE.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(155930);\n script_version(\"1.8\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2023/07/13\");\n\n script_cve_id(\n \"CVE-2018-3639\",\n \"CVE-2018-9517\",\n \"CVE-2019-3874\",\n \"CVE-2019-3900\",\n \"CVE-2020-3702\",\n \"CVE-2020-12770\",\n \"CVE-2021-0941\",\n \"CVE-2021-3640\",\n \"CVE-2021-3653\",\n \"CVE-2021-3655\",\n \"CVE-2021-3656\",\n \"CVE-2021-3659\",\n \"CVE-2021-3679\",\n \"CVE-2021-3732\",\n \"CVE-2021-3744\",\n \"CVE-2021-3752\",\n \"CVE-2021-3753\",\n \"CVE-2021-3760\",\n \"CVE-2021-3764\",\n \"CVE-2021-3772\",\n \"CVE-2021-20320\",\n \"CVE-2021-20322\",\n \"CVE-2021-22543\",\n \"CVE-2021-31916\",\n \"CVE-2021-33033\",\n \"CVE-2021-34556\",\n \"CVE-2021-34981\",\n \"CVE-2021-35477\",\n \"CVE-2021-37159\",\n \"CVE-2021-37576\",\n \"CVE-2021-38160\",\n \"CVE-2021-38198\",\n \"CVE-2021-38204\",\n \"CVE-2021-40490\",\n \"CVE-2021-41864\",\n \"CVE-2021-42008\",\n \"CVE-2021-42252\"\n );\n script_xref(name:\"SuSE\", value:\"SUSE-SU-2021:3969-1\");\n script_xref(name:\"CEA-ID\", value:\"CEA-2021-0025\");\n\n script_name(english:\"SUSE SLES15 Security Update : kernel (SUSE-SU-2021:3969-1)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote SUSE host is missing one or more security updates.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as\nreferenced in the SUSE-SU-2021:3969-1 advisory.\n\n - Systems with microprocessors utilizing speculative execution and speculative execution of memory reads\n before the addresses of all prior memory writes are known may allow unauthorized disclosure of information\n to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB),\n Variant 4. (CVE-2018-3639)\n\n - In pppol2tp_connect, there is possible memory corruption due to a use after free. This could lead to local\n escalation of privilege with System execution privileges needed. User interaction is not needed for\n exploitation. Product: Android. Versions: Android kernel. Android ID: A-38159931. (CVE-2018-9517)\n\n - The SCTP socket buffer used by a userspace application is not accounted by the cgroups subsystem. An\n attacker can use this flaw to cause a denial of service attack. Kernel 3.10.x and 4.18.x branches are\n believed to be vulnerable. (CVE-2019-3874)\n\n - An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including\n v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster\n than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the\n vhost_net kernel thread, resulting in a DoS scenario. (CVE-2019-3900)\n\n - An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a\n certain failure case, aka CID-83c6f2390040. (CVE-2020-12770)\n\n - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to\n improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for\n a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon\n Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon\n Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W,\n MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)\n\n - In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This\n could lead to local escalation of privilege with System execution privileges needed. User interaction is\n not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-154177719References:\n Upstream kernel (CVE-2021-0941)\n\n - A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In\n this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a\n confidentiality problem. (CVE-2021-20320)\n\n - A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux\n kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an\n off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this\n vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source\n port randomization are indirectly affected as well. (CVE-2021-20322)\n\n - An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass\n RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users\n with the ability to start and control a VM to read/write random pages of memory and can result in local\n privilege escalation. (CVE-2021-22543)\n\n - An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-\n device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with\n special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or\n a leak of internal kernel information. The highest threat from this vulnerability is to system\n availability. (CVE-2021-31916)\n\n - The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because\n the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads\n to writing an arbitrary value. (CVE-2021-33033)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from\n kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects\n the possibility of uninitialized memory locations on the BPF stack. (CVE-2021-34556)\n\n - A flaw was found in the Linux kernel's CAPI over Bluetooth connection code. An attacker with a local\n account can escalate privileges when CAPI (ISDN) hardware connection fails. (CVE-2021-34981)\n\n - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from\n kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store\n operation does not necessarily occur before a store operation that has an attacker-controlled value.\n (CVE-2021-35477)\n\n - A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the\n way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del()\n together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A\n privileged local user could use this flaw to crash the system or escalate their privileges on the system.\n (CVE-2021-3640)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when\n processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested\n guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to\n enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest\n would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak\n of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to\n 5.14-rc7. (CVE-2021-3653)\n\n - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on\n inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)\n\n - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when\n processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested\n guest (L2). Due to improper validation of the virt_ext field, this issue could allow a malicious L1 to\n disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the\n L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire\n system, leak of sensitive data or potential guest-to-host escape. (CVE-202
CVE-2021-20322
