QID 241037

Date Published: 2023-01-11

QID 241037: Red Hat Update for grub2 (RHSA-2023:0047)

The grub2 packages provide version 2 of the grand unified boot loader (grub), a highly configurable and customizable boot loader with modular architecture.
The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices...Security Fix(es):

    grub2: buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass (cve-2022-2601).
    Grub2: heap based out-of-bounds write when redering certain unicode sequences (cve-2022-3775).
Affected Products:
    Red Hat enterprise linux for x86_64 - extended update support 8.4 x86_64.
    Red hat enterprise linux server - aus 8.4 x86_64.
    Red hat enterprise linux for power, little endian - extended update support 8.4 ppc64le.
    Red hat enterprise linux server - tus 8.4 x86_64.
    Red hat enterprise linux for arm 64 - extended update support 8.4 aarch64.
    Red hat enterprise linux server for power le - update services for sap solutions 8.4 ppc64le.
    Red hat enterprise linux for x86_64 - update services for sap solutions 8.4 x86_64.
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Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Critical - 8.6 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2023:0047 for updates and patch information.
    Vendor References

    CVEs related to QID 241037

    CVE-2022-2601 | CVE-2022-3775 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2023:0047 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2023:0047
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