RHSA-2026:8883 - Security Advisory

Topic

An update for giflib is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The giflib package contains a shared library of functions for loading and saving GIF format image files. It is API and ABI compatible with libungif, the library which supported uncompressed GIFs while the Unisys LZW patent was in effect.

Security Fix(es):

• giflib: Giflib: Double-free vulnerability leading to memory corruption (CVE-2026-23868)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 2446207 - CVE-2026-23868 giflib: Giflib: Double-free vulnerability leading to memory corruption

CVEs

• CVE-2026-23868

References

• https://access.redhat.com/security/updates/classification/#important