ALAS2-2022-1774

Amazon Linux 2 Security Advisory: ALAS-2022-1774
Advisory Release Date: 2022-04-18 19:47 Pacific
Advisory Updated Date: 2022-04-19 19:17 Pacific
Severity: Important
Issue Overview:

A buffer overflow flaw was found in the Linux kernel's NFC protocol functionality. This flaw allows a local user to crash or escalate their privileges on the system. (CVE-2022-26490)

A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat. (CVE-2022-27666)

In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c. (CVE-2022-28356)


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-4.14.275-207.503.amzn2.aarch64
    kernel-headers-4.14.275-207.503.amzn2.aarch64
    kernel-debuginfo-common-aarch64-4.14.275-207.503.amzn2.aarch64
    perf-4.14.275-207.503.amzn2.aarch64
    perf-debuginfo-4.14.275-207.503.amzn2.aarch64
    python-perf-4.14.275-207.503.amzn2.aarch64
    python-perf-debuginfo-4.14.275-207.503.amzn2.aarch64
    kernel-tools-4.14.275-207.503.amzn2.aarch64
    kernel-tools-devel-4.14.275-207.503.amzn2.aarch64
    kernel-tools-debuginfo-4.14.275-207.503.amzn2.aarch64
    kernel-devel-4.14.275-207.503.amzn2.aarch64
    kernel-debuginfo-4.14.275-207.503.amzn2.aarch64

i686:
    kernel-headers-4.14.275-207.503.amzn2.i686

src:
    kernel-4.14.275-207.503.amzn2.src

x86_64:
    kernel-4.14.275-207.503.amzn2.x86_64
    kernel-headers-4.14.275-207.503.amzn2.x86_64
    kernel-debuginfo-common-x86_64-4.14.275-207.503.amzn2.x86_64
    perf-4.14.275-207.503.amzn2.x86_64
    perf-debuginfo-4.14.275-207.503.amzn2.x86_64
    python-perf-4.14.275-207.503.amzn2.x86_64
    python-perf-debuginfo-4.14.275-207.503.amzn2.x86_64
    kernel-tools-4.14.275-207.503.amzn2.x86_64
    kernel-tools-devel-4.14.275-207.503.amzn2.x86_64
    kernel-tools-debuginfo-4.14.275-207.503.amzn2.x86_64
    kernel-devel-4.14.275-207.503.amzn2.x86_64
    kernel-debuginfo-4.14.275-207.503.amzn2.x86_64
    kernel-livepatch-4.14.275-207.503-1.0-0.amzn2.x86_64

Additional References

Red Hat: CVE-2022-26490, CVE-2022-27666, CVE-2022-28356

Mitre: CVE-2022-26490, CVE-2022-27666, CVE-2022-28356