ALAS2KERNEL-5.4-2022-017

Related Vulnerabilities: CVE-2020-25211  

A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-25211)

ALAS2KERNEL-5.4-2022-017


Amazon Linux 2 Security Advisory: ALASKERNEL-5.4-2022-017
Advisory Release Date: 2022-01-20 19:33 Pacific
Advisory Updated Date: 2022-01-28 17:22 Pacific
Severity: Important
References: CVE-2020-25211 

Issue Overview:

A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-25211)


Affected Packages:

kernel


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

New Packages:
aarch64:
    kernel-5.4.74-36.135.amzn2.aarch64
    kernel-headers-5.4.74-36.135.amzn2.aarch64
    kernel-debuginfo-common-aarch64-5.4.74-36.135.amzn2.aarch64
    perf-5.4.74-36.135.amzn2.aarch64
    perf-debuginfo-5.4.74-36.135.amzn2.aarch64
    python-perf-5.4.74-36.135.amzn2.aarch64
    python-perf-debuginfo-5.4.74-36.135.amzn2.aarch64
    kernel-tools-5.4.74-36.135.amzn2.aarch64
    kernel-tools-devel-5.4.74-36.135.amzn2.aarch64
    kernel-tools-debuginfo-5.4.74-36.135.amzn2.aarch64
    kernel-devel-5.4.74-36.135.amzn2.aarch64
    kernel-debuginfo-5.4.74-36.135.amzn2.aarch64

i686:
    kernel-headers-5.4.74-36.135.amzn2.i686

src:
    kernel-5.4.74-36.135.amzn2.src

x86_64:
    kernel-5.4.74-36.135.amzn2.x86_64
    kernel-headers-5.4.74-36.135.amzn2.x86_64
    kernel-debuginfo-common-x86_64-5.4.74-36.135.amzn2.x86_64
    perf-5.4.74-36.135.amzn2.x86_64
    perf-debuginfo-5.4.74-36.135.amzn2.x86_64
    python-perf-5.4.74-36.135.amzn2.x86_64
    python-perf-debuginfo-5.4.74-36.135.amzn2.x86_64
    kernel-tools-5.4.74-36.135.amzn2.x86_64
    kernel-tools-devel-5.4.74-36.135.amzn2.x86_64
    kernel-tools-debuginfo-5.4.74-36.135.amzn2.x86_64
    kernel-devel-5.4.74-36.135.amzn2.x86_64
    kernel-debuginfo-5.4.74-36.135.amzn2.x86_64