ALAS2023-2023-383

Amazon Linux 2023 Security Advisory: ALAS-2023-383
Advisory Release Date: 2023-10-12 16:11 Pacific
Advisory Updated Date: 2023-10-24 15:46 Pacific
Severity: Medium
Issue Overview:

libX11: out-of-bounds memory access in _XkbReadKeySyms() (CVE-2023-43785)

A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition. (CVE-2023-43786)

libX11: integer overflow in XCreateImage() leading to a heap overflow. (CVE-2023-43787)


Affected Packages:

libX11


Issue Correction:
Run dnf update libX11 --releasever 2023.2.20231018 to update your system.

New Packages:
aarch64:
    libX11-debuginfo-1.7.2-3.amzn2023.0.4.aarch64
    libX11-xcb-debuginfo-1.7.2-3.amzn2023.0.4.aarch64
    libX11-xcb-1.7.2-3.amzn2023.0.4.aarch64
    libX11-1.7.2-3.amzn2023.0.4.aarch64
    libX11-debugsource-1.7.2-3.amzn2023.0.4.aarch64
    libX11-devel-1.7.2-3.amzn2023.0.4.aarch64

noarch:
    libX11-common-1.7.2-3.amzn2023.0.4.noarch

src:
    libX11-1.7.2-3.amzn2023.0.4.src

x86_64:
    libX11-xcb-1.7.2-3.amzn2023.0.4.x86_64
    libX11-xcb-debuginfo-1.7.2-3.amzn2023.0.4.x86_64
    libX11-1.7.2-3.amzn2023.0.4.x86_64
    libX11-debuginfo-1.7.2-3.amzn2023.0.4.x86_64
    libX11-debugsource-1.7.2-3.amzn2023.0.4.x86_64
    libX11-devel-1.7.2-3.amzn2023.0.4.x86_64

Additional References

Red Hat: CVE-2023-43785, CVE-2023-43786, CVE-2023-43787

Mitre: CVE-2023-43785, CVE-2023-43786, CVE-2023-43787