Important: kernel

Issue Overview:

A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function ipv6_renew_options of the component IPv6 Handler. The manipulation leads to memory leak. The attack can be launched remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211021 was assigned to this vulnerability. (CVE-2022-3524)

A use-after-free flaw was found in the Linux kernel’s implementation of logical link control and adaptation protocol (L2CAP), part of the Bluetooth stack in the l2cap_connect and l2cap_le_connect_req functions. An attacker with physical access within the range of standard Bluetooth transmission could execute code leaking kernel memory via Bluetooth if within proximity of the victim. (CVE-2022-42896)

Affected Packages:

kernel

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update kernel to update your system.

New Packages:

aarch64:  
    kernel-4.14.301-224.520.amzn2.aarch64  
    kernel-headers-4.14.301-224.520.amzn2.aarch64  
    kernel-debuginfo-common-aarch64-4.14.301-224.520.amzn2.aarch64  
    perf-4.14.301-224.520.amzn2.aarch64  
    perf-debuginfo-4.14.301-224.520.amzn2.aarch64  
    python-perf-4.14.301-224.520.amzn2.aarch64  
    python-perf-debuginfo-4.14.301-224.520.amzn2.aarch64  
    kernel-tools-4.14.301-224.520.amzn2.aarch64  
    kernel-tools-devel-4.14.301-224.520.amzn2.aarch64  
    kernel-tools-debuginfo-4.14.301-224.520.amzn2.aarch64  
    kernel-devel-4.14.301-224.520.amzn2.aarch64  
    kernel-debuginfo-4.14.301-224.520.amzn2.aarch64  
  
i686:  
    kernel-headers-4.14.301-224.520.amzn2.i686  
  
src:  
    kernel-4.14.301-224.520.amzn2.src  
  
x86_64:  
    kernel-4.14.301-224.520.amzn2.x86_64  
    kernel-headers-4.14.301-224.520.amzn2.x86_64  
    kernel-debuginfo-common-x86_64-4.14.301-224.520.amzn2.x86_64  
    perf-4.14.301-224.520.amzn2.x86_64  
    perf-debuginfo-4.14.301-224.520.amzn2.x86_64  
    python-perf-4.14.301-224.520.amzn2.x86_64  
    python-perf-debuginfo-4.14.301-224.520.amzn2.x86_64  
    kernel-tools-4.14.301-224.520.amzn2.x86_64  
    kernel-tools-devel-4.14.301-224.520.amzn2.x86_64  
    kernel-tools-debuginfo-4.14.301-224.520.amzn2.x86_64  
    kernel-devel-4.14.301-224.520.amzn2.x86_64  
    kernel-debuginfo-4.14.301-224.520.amzn2.x86_64  
    kernel-livepatch-4.14.301-224.520-1.0-0.amzn2.x86_64  

Additional References

Red Hat: CVE-2022-3524, CVE-2022-42896

Mitre: CVE-2022-3524, CVE-2022-42896