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ALAS2-2023-2027

Related Vulnerabilities: CVE-2023-2124   CVE-2023-23454  

An out-of-bounds memory access flaw was found in the Linux kernel's XFS file system in how a user restores an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2023-2124) cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)

Source

ALAS2-2023-2027

Amazon Linux 2 Security Advisory: ALAS-2023-2027
Advisory Release Date: 2023-04-27 18:37 Pacific
Advisory Updated Date: 2023-05-02 19:19 Pacific
Severity: Important
Issue Overview:

An out-of-bounds memory access flaw was found in the Linux kernel's XFS file system in how a user restores an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2023-2124)

cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)


Affected Packages:

kernel


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

New Packages:
aarch64:
    kernel-4.14.313-235.533.amzn2.aarch64
    kernel-headers-4.14.313-235.533.amzn2.aarch64
    kernel-debuginfo-common-aarch64-4.14.313-235.533.amzn2.aarch64
    perf-4.14.313-235.533.amzn2.aarch64
    perf-debuginfo-4.14.313-235.533.amzn2.aarch64
    python-perf-4.14.313-235.533.amzn2.aarch64
    python-perf-debuginfo-4.14.313-235.533.amzn2.aarch64
    kernel-tools-4.14.313-235.533.amzn2.aarch64
    kernel-tools-devel-4.14.313-235.533.amzn2.aarch64
    kernel-tools-debuginfo-4.14.313-235.533.amzn2.aarch64
    kernel-devel-4.14.313-235.533.amzn2.aarch64
    kernel-debuginfo-4.14.313-235.533.amzn2.aarch64

i686:
    kernel-headers-4.14.313-235.533.amzn2.i686

src:
    kernel-4.14.313-235.533.amzn2.src

x86_64:
    kernel-4.14.313-235.533.amzn2.x86_64
    kernel-headers-4.14.313-235.533.amzn2.x86_64
    kernel-debuginfo-common-x86_64-4.14.313-235.533.amzn2.x86_64
    perf-4.14.313-235.533.amzn2.x86_64
    perf-debuginfo-4.14.313-235.533.amzn2.x86_64
    python-perf-4.14.313-235.533.amzn2.x86_64
    python-perf-debuginfo-4.14.313-235.533.amzn2.x86_64
    kernel-tools-4.14.313-235.533.amzn2.x86_64
    kernel-tools-devel-4.14.313-235.533.amzn2.x86_64
    kernel-tools-debuginfo-4.14.313-235.533.amzn2.x86_64
    kernel-devel-4.14.313-235.533.amzn2.x86_64
    kernel-debuginfo-4.14.313-235.533.amzn2.x86_64
    kernel-livepatch-4.14.313-235.533-1.0-0.amzn2.x86_64

Additional References

Red Hat: CVE-2023-2124, CVE-2023-23454

Mitre: CVE-2023-2124, CVE-2023-23454

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