kernel: SVM nested virtualization issue in KVM (AVIC support)

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 "intctl" field, this issue could allow a malicious ...

Moderate: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: SVM nested virtualization issue in KVM AVIC support CVE-2021-3653 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

LSN-0081-1 Kernel Live Patch Security Notice

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory.CVE-2021-3653 Maxim...

CVE-2020-25639 affecting package kernel 5.10.189.1-1

CVE-2020-25639 affecting package kernel 5.10.189.1-1. A patched version of the package is available...

CVE-2021-33909 affecting package kernel 5.10.168.1-1

CVE-2021-33909 affecting package kernel 5.10.168.1-1. A patched version of the package is available...

kernel security and bug fix update

3.10.0-1160.42.2.OL7 - Update Oracle Linux certificates Ilya Okomin - Oracle Linux RHCK Module Signing Key was compiled into kernel [email protected] - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and shim-x64 = 15-2.0.9 - Update oraclekernel-sig-key...

OESA-2021-1336 kernel security update

he Linux Kernel, the operating system core itself. Security Fixes: A flaw use-after-free in function scosocksendmsg of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIOREGISTER or other way triggers race condition of the call scoconndel together with the call scosocksendm...

Linux eBPF ALU32 32-bit Invalid Bounds Tracking Local Privilege Escalation

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Linux eBPF ALU32 32-bit Invalid Bounds Tracking LPE', 'Description' = %q Linux kernels from 5.7-rc1 prior to 5.13-rc4, 5.12.4, 5.11.21, and 5.10....

OESA-2021-1324 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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...

LSN-0080-1 Kernel Live Patch Security Notice

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt implementation. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code.CVE-2021-22555...

kernel security, bug fix, and enhancement update

4.18.0-305.12.14.OL8 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

Unbreakable Enterprise kernel security update

5.4.17-2102.204.4.2 - rds/ib: quarantine STALE mr before dereg Manjunath Patil Orabug: 33150447 5.4.17-2102.204.4.1 - rds/ib: update mr incarnation after forming inv wr Manjunath Patil Orabug: 33177348 - rds/ib: avoid dereg of mr in frwrclean Manjunath Patil Orabug: 33150427 - arm64: mm: kdump: F...

Unbreakable Enterprise kernel-container security update

5.4.17-2102.204.4.2 - rds/ib: quarantine STALE mr before dereg Manjunath Patil Orabug: 33150447 - rds/ib: update mr incarnation after forming inv wr Manjunath Patil Orabug: 33177348 - rds/ib: avoid dereg of mr in frwrclean Manjunath Patil Orabug: 33150427 - arm64: mm: kdump: Fix /proc/kcore Henry...

SUSE-SU-2021:2559-1 Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-5910 fixes several issues. The following security issues were fixed: - CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. bsc1188062 - CVE-2021-22555: Fixed an heap out-of-bounds write in...

LSN-0079-1 Kernel Live Patch Security Notice

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.CVE-2021-3600 It was discovered that the virtual file system...

SUSE-SU-2021:2433-1 Security update for the Linux Kernel (Live Patch 34 for SLE 12 SP3)

This update for the Linux Kernel 4.4.180-94127 fixes several issues. The following security issues were fixed: - CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. bsc1187687 - CVE-2021-0512: Fixed a...

SUSE-SU-2021:2368-1 Security update for the Linux Kernel (Live Patch 21 for SLE 12 SP4)

This update for the Linux Kernel 4.12.14-9577 fixes several issues. The following security issues were fixed: - CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. bsc1187687 - CVE-2021-0512: Fixed a...

SUSE-SU-2021:2332-1 Security update for the Linux Kernel (Live Patch 15 for SLE 15 SP1)

This update for the Linux Kernel 4.12.14-19756 fixes several issues. The following security issues were fixed: - CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. bsc1187597 - CVE-2021-23133: Fixed...

Microsoft Windows Kernel 安全特征问题漏洞

Microsoft Windows Kernel is the kernel of the Windows operating system from Microsoft Corporation USA. A vulnerability exists in the Microsoft Windows Kernel due to a security feature issue. The following products and editions are affected: Windows 10 Version 21H1 for x64-based Systems,Windows 10...