RHSA-2026:33450: Important: giflib security update
giflib is a library for reading and writing gif images.Security Fix(es): giflib: giflib: Denial of Service via buffer overflow in EGifGCBToExtension (CVE-2026-26740) 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/giflibto a version that resolves this vulnerability.Fixed in 5.1.4-3.el8_4.2 - Upgrade
Upgrade
redhat/giflib-debuginfoto a version that resolves this vulnerability.Fixed in 5.1.4-3.el8_4.2 - Upgrade
Upgrade
redhat/giflib-debugsourceto a version that resolves this vulnerability.Fixed in 5.1.4-3.el8_4.2 - Upgrade
Upgrade
redhat/giflib-utils-debuginfoto a version that resolves this vulnerability.Fixed in 5.1.4-3.el8_4.2
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:33450?
The severity of RHSA-2026:33450 is rated as high with a score of 7.
What security issue is addressed in RHSA-2026:33450?
RHSA-2026:33450 addresses a Denial of Service vulnerability due to a buffer overflow in the function EGifGCBToExtension.
How do I fix RHSA-2026:33450?
To resolve RHSA-2026:33450, you need to update the giflib packages to the latest version provided by Red Hat.
What software is affected by RHSA-2026:33450?
The affected software for RHSA-2026:33450 includes redhat/giflib and its associated debug and utility packages.
Is a restart required after applying the fix for RHSA-2026:33450?
A restart is not typically required after applying the update for RHSA-2026:33450, but it's advisable to verify any application-specific requirements.