QID 239540

Date Published: 2021-08-16

QID 239540: Red Hat Update for glib2 (RHSA-2021:3058)

GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures.

Security Fix(es): glib: integer overflow in g_byte_array_new_take function when called with a buffer of 4GB or more on a 64-bit platform (CVE-2021-27218)

Affected Products:

Red Hat Enterprise Linux for x86_64 8 x86_64
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 IBM z Systems 8 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.4 s390x
Red Hat Enterprise Linux for Power, little endian 8 ppc64le
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 8 aarch64
Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 8.4 ppc64le
Red Hat Enterprise Linux Server - Update Services for SAP Solutions 8.4 x86_64
Red Hat CodeReady Linux Builder for x86_64 8 x86_64
Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
Red Hat CodeReady Linux Builder for IBM z Systems 8 s390x
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4 aarch64
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.4 x86_64
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 8.4 ppc64le
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 8.4 s390x
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.4 aarch64

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.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.

    Refer to Red Hat security advisory RHSA-2021:3058 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239540

    CVE-2021-27218 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:3058 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:3058?language=en
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