1756-EN2TXT Series A, B, C Security Vulnerabilities

CVE-2021-47582

In the Linux kernel, the following vulnerability has been resolved: USB: core: Make do_proc_control() and do_proc_bulk() killable The USBDEVFS_CONTROL and USBDEVFS_BULK ioctls invoke usb_start_wait_urb(), which contains an uninterruptible wait with a user-specified timeout value. If timeout value.....

CVE-2021-47584

In the Linux kernel, the following vulnerability has been resolved: iocost: Fix divide-by-zero on donation from low hweight cgroup The donation calculation logic assumes that the donor has non-zero after-donation hweight, so the lowest active hweight a donating cgroup can have is 2 so that it can.....

CVE-2021-47574

In the Linux kernel, the following vulnerability has been resolved: xen/netfront: harden netfront against event channel storms The Xen netfront driver is still vulnerable for an attack via excessive number of events sent by the backend. Fix that by using lateeoi event channels. For being able to...

CVE-2021-47573

In the Linux kernel, the following vulnerability has been resolved: xen/blkfront: harden blkfront against event channel storms The Xen blkfront driver is still vulnerable for an attack via excessive number of events sent by the backend. Fix that by using lateeoi event channels. This is part of...

CVE-2021-47573

In the Linux kernel, the following vulnerability has been resolved: xen/blkfront: harden blkfront against event channel storms The Xen blkfront driver is still vulnerable for an attack via excessive number of events sent by the backend. Fix that by using lateeoi event channels. This is part of...

CVE-2021-47574

In the Linux kernel, the following vulnerability has been resolved: xen/netfront: harden netfront against event channel storms The Xen netfront driver is still vulnerable for an attack via excessive number of events sent by the backend. Fix that by using lateeoi event channels. For being able to...

Sophon and Aethir Partner to Bring Decentralized Compute to The ZK Community

Sophon and Aethir have announced the beginning of a strategic collaboration between the two networks, connecting the...

UNC3886 Uses Fortinet, VMware 0-Days and Stealth Tactics in Long-Term Spying

The China-nexus cyber espionage actor linked to the zero-day exploitation of security flaws in Fortinet, Ivanti, and VMware devices has been observed utilizing multiple persistence mechanisms in order to maintain unfettered access to compromised environments. "Persistence mechanisms encompassed...

TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp option

Impact A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content extraction code. When using the noneditable_regexp option, specially crafted HTML attributes containing malicious code were able to be executed when content was extracted from the editor. Patches This...

TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements

Impact A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. Patches This vulnerability has been patched in TinyMCE 7.2.0,.....

socket.io has an unhandled 'error' event

Impact A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. ``` node:events:502 throw err; // Unhandled 'error' event ^ Error [ERR_UNHANDLED_ERROR]: Unhandled error. (undefined) at new NodeError...

TotalCloud Insights: Protect Your AWS Environment by Managing Access Keys Securely

Introduction With the average cost of a data breach coming in at $4.45M in 2023, safeguarding sensitive information and maintaining the security of cloud environments is more critical than ever. Instances of compromised access keys, not exclusive to AWS (Amazon Web Services) but prevalent across...

CVE-2021-47615 RDMA/mlx5: Fix releasing unallocated memory in dereg MR flow

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix releasing unallocated memory in dereg MR flow For the case of IB_MR_TYPE_DM the mr does doesn't have a umem, even though it is a user MR. This causes function mlx5_free_priv_descs() to think that it is a kernel MR,.....

CVE-2021-47616 RDMA: Fix use-after-free in rxe_queue_cleanup

In the Linux kernel, the following vulnerability has been resolved: RDMA: Fix use-after-free in rxe_queue_cleanup On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_create_qp() will drop last reference to this object. qp clean up function will try to free this queue....

CVE-2021-47614 RDMA/irdma: Fix a user-after-free in add_pble_prm

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix a user-after-free in add_pble_prm When irdma_hmc_sd_one fails, 'chunk' is freed while its still on the PBLE info list. Add the chunk entry to the PBLE info list only after successful setting of the SD in...

CVE-2021-47613 i2c: virtio: fix completion handling

In the Linux kernel, the following vulnerability has been resolved: i2c: virtio: fix completion handling The driver currently assumes that the notify callback is only received when the device is done with all the queued buffers. However, this is not true, since the notify callback could be called.....

CVE-2021-47612 nfc: fix segfault in nfc_genl_dump_devices_done

In the Linux kernel, the following vulnerability has been resolved: nfc: fix segfault in nfc_genl_dump_devices_done When kmalloc in nfc_genl_dump_devices() fails then nfc_genl_dump_devices_done() segfaults as below KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID:.....

CVE-2021-47611 mac80211: validate extended element ID is present

In the Linux kernel, the following vulnerability has been resolved: mac80211: validate extended element ID is present Before attempting to parse an extended element, verify that the extended element ID is...

CVE-2021-47609 firmware: arm_scpi: Fix string overflow in SCPI genpd driver

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: Fix string overflow in SCPI genpd driver Without the bound checks for scpi_pd->name, it could result in the buffer overflow when copying the SCPI device name from the corresponding device tree node as the nam...

CVE-2021-47610 drm/msm: Fix null ptr access msm_ioctl_gem_submit()

In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix null ptr access msm_ioctl_gem_submit() Fix the below null pointer dereference in msm_ioctl_gem_submit(): 26545.260705: Call trace: 26545.263223: kref_put+0x1c/0x60 26545.266452: ...

CVE-2024-34444 WordPress Slider Revolution plugin < 6.7.0 - Unauthenticated Broken Access Control vulnerability

Missing Authorization vulnerability in ThemePunch OHG Slider Revolution.This issue affects Slider Revolution: from n/a before...

CVE-2021-47608 bpf: Fix kernel address leakage in atomic fetch

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic fetch The change in commit 37086bfdc737 ("bpf: Propagate stack bounds to registers in atomics w/ BPF_FETCH") around check_mem_access() handling is buggy since this would allow for...

CVE-2021-47607 bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg The implementation of BPF_CMPXCHG on a high level has the following parameters: .-[old-val] .-[new-val] BPF_R0 =...

CVE-2021-47606 net: netlink: af_netlink: Prevent empty skb by adding a check on len.

In the Linux kernel, the following vulnerability has been resolved: net: netlink: af_netlink: Prevent empty skb by adding a check on len. Adding a check on len parameter to avoid empty skb. This prevents a division error in netem_enqueue function which is caused when skb-&gt;len=0 and skb-&gt;data_...

CVE-2021-47605 vduse: fix memory corruption in vduse_dev_ioctl()

In the Linux kernel, the following vulnerability has been resolved: vduse: fix memory corruption in vduse_dev_ioctl() The "config.offset" comes from the user. There needs to a check to prevent it being out of bounds. The "config.offset" and "dev-&gt;config_size" variables are both type u32. So if.....

CVE-2021-47604 vduse: check that offset is within bounds in get_config()

In the Linux kernel, the following vulnerability has been resolved: vduse: check that offset is within bounds in get_config() This condition checks "len" but it does not check "offset" and that could result in an out of bounds read if "offset &gt; dev-&gt;config_size". The problem is that since bot...

CVE-2021-47603 audit: improve robustness of the audit queue handling

In the Linux kernel, the following vulnerability has been resolved: audit: improve robustness of the audit queue handling If the audit daemon were ever to get stuck in a stopped state the kernel's kauditd_thread() could get blocked attempting to send audit records to the userspace audit daemon. ...

CVE-2021-47602 mac80211: track only QoS data frames for admission control

In the Linux kernel, the following vulnerability has been resolved: mac80211: track only QoS data frames for admission control For admission control, obviously all of that only works for QoS data frames, otherwise we cannot even access the QoS field in the header. Syzbot reported (see below) an...

CVE-2021-47601 tee: amdtee: fix an IS_ERR() vs NULL bug

In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix an IS_ERR() vs NULL bug The __get_free_pages() function does not return error pointers it returns NULL so fix this condition to avoid a NULL...

CVE-2021-47599 btrfs: use latest_dev in btrfs_show_devname

In the Linux kernel, the following vulnerability has been resolved: btrfs: use latest_dev in btrfs_show_devname The test case btrfs/238 reports the warning below: WARNING: CPU: 3 PID: 481 at fs/btrfs/super.c:2509 btrfs_show_devname+0x104/0x1e8 [btrfs] CPU: 2 PID: 1 Comm: systemd Tainted: G ...

CVE-2021-47600 dm btree remove: fix use after free in rebalance_children()

In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalance_children() Move dm_tm_unlock() after...

CVE-2021-47598 sch_cake: do not call cake_destroy() from cake_init()

In the Linux kernel, the following vulnerability has been resolved: sch_cake: do not call cake_destroy() from cake_init() qdiscs are not supposed to call their own destroy() method from init(), because core stack already does that. syzbot was able to trigger use after free:...

CVE-2021-47596 net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg Currently, the hns3_remove function firstly uninstall client instance, and then uninstall acceletion engine device. The netdevice is freed in client instance uninstall...

CVE-2021-47597 inet_diag: fix kernel-infoleak for UDP sockets

In the Linux kernel, the following vulnerability has been resolved: inet_diag: fix kernel-infoleak for UDP sockets KMSAN reported a kernel-infoleak [1], that can exploited by unpriv users. After analysis it turned out UDP was not initializing r-&gt;idiag_expires. Other users of inet_sk_diag_fill()....

CVE-2021-47595 net/sched: sch_ets: don't remove idle classes from the round-robin list

In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_ets: don't remove idle classes from the round-robin list Shuang reported that the following script: 1) tc qdisc add dev ddd0 handle 10: parent 1: ets bands 8 strict 4 priomap 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 2)...

CVE-2021-47593 mptcp: clear 'kern' flag from fallback sockets

In the Linux kernel, the following vulnerability has been resolved: mptcp: clear 'kern' flag from fallback sockets The mptcp ULP extension relies on sk-&gt;sk_sock_kern being set correctly: It prevents setsockopt(fd, IPPROTO_TCP, TCP_ULP, "mptcp", 6); from working for plain tcp sockets (any...

CVE-2021-47594 mptcp: never allow the PM to close a listener subflow

In the Linux kernel, the following vulnerability has been resolved: mptcp: never allow the PM to close a listener subflow Currently, when deleting an endpoint the netlink PM treverses all the local MPTCP sockets, regardless of their status. If an MPTCP listener socket is bound to the IP matching...

CVE-2021-47592 net: stmmac: fix tc flower deletion for VLAN priority Rx steering

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix tc flower deletion for VLAN priority Rx steering To replicate the issue:- 1) Add 1 flower filter for VLAN Priority based frame steering:- $ IFDEVNAME=eth0 $ tc qdisc add dev $IFDEVNAME ingress $ tc qdisc add dev...

CVE-2024-34443 WordPress Slider Revolution plugin < 6.7.11 - Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in ThemePunch OHG Slider Revolution allows Stored XSS.This issue affects Slider Revolution: from n/a before...

CVE-2021-47591 mptcp: remove tcp ulp setsockopt support

In the Linux kernel, the following vulnerability has been resolved: mptcp: remove tcp ulp setsockopt support TCP_ULP setsockopt cannot be used for mptcp because its already used internally to plumb subflow (tcp) sockets to the mptcp layer. syzbot managed to trigger a crash for mptcp connections...

CVE-2021-47590 mptcp: fix deadlock in __mptcp_push_pending()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix deadlock in __mptcp_push_pending() __mptcp_push_pending() may call mptcp_flush_join_list() with subflow socket lock held. If such call hits mptcp_sockopt_sync_all() then subsequently __mptcp_sockopt_sync() could try to.....

CVE-2021-47589 igbvf: fix double free in `igbvf_probe`

In the Linux kernel, the following vulnerability has been resolved: igbvf: fix double free in igbvf_probe In igbvf_probe, if register_netdev() fails, the program will go to label err_hw_init, and then to label err_ioremap. In free_netdev() which is just below label err_ioremap, there is...

CVE-2021-47588 sit: do not call ipip6_dev_free() from sit_init_net()

In the Linux kernel, the following vulnerability has been resolved: sit: do not call ipip6_dev_free() from sit_init_net() ipip6_dev_free is sit dev-&gt;priv_destructor, already called by register_netdevice() if something goes wrong. Alternative would be to make ipip6_dev_free() robust against...

CVE-2021-47587 net: systemport: Add global locking for descriptor lifecycle

In the Linux kernel, the following vulnerability has been resolved: net: systemport: Add global locking for descriptor lifecycle The descriptor list is a shared resource across all of the transmit queues, and the locking mechanism used today only protects concurrency across a given transmit queue.....

CVE-2021-47586 net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup KASAN reports an out-of-bounds read in rk_gmac_setup on the line: while (ops-&gt;regs[i]) { This happens for most platforms since the regs flexible array member is empty, so the....

CVE-2021-47585 btrfs: fix memory leak in __add_inode_ref()

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in __add_inode_ref() Line 1169 (#3) allocates a memory chunk for victim_name by kmalloc(), but when the function returns in line 1184 (#4) victim_name allocated by line 1169 (#3) is not freed, which will...

CVE-2021-47584 iocost: Fix divide-by-zero on donation from low hweight cgroup

In the Linux kernel, the following vulnerability has been resolved: iocost: Fix divide-by-zero on donation from low hweight cgroup The donation calculation logic assumes that the donor has non-zero after-donation hweight, so the lowest active hweight a donating cgroup can have is 2 so that it can.....

CVE-2021-47583 media: mxl111sf: change mutex_init() location

In the Linux kernel, the following vulnerability has been resolved: media: mxl111sf: change mutex_init() location Syzbot reported, that mxl111sf_ctrl_msg() uses uninitialized mutex. The problem was in wrong mutex_init() location. Previous mutex_init(&state-&gt;msg_lock) call was in -&gt;init() func...

CVE-2021-47582 USB: core: Make do_proc_control() and do_proc_bulk() killable

In the Linux kernel, the following vulnerability has been resolved: USB: core: Make do_proc_control() and do_proc_bulk() killable The USBDEVFS_CONTROL and USBDEVFS_BULK ioctls invoke usb_start_wait_urb(), which contains an uninterruptible wait with a user-specified timeout value. If timeout value.....

CVE-2021-47581 xen/netback: don't queue unlimited number of packages

In the Linux kernel, the following vulnerability has been resolved: xen/netback: don't queue unlimited number of packages In case a guest isn't consuming incoming network traffic as fast as it is coming in, xen-netback is buffering network packages in unlimited numbers today. This can result in...