Amazon Linux 2 Security Advisory: ALAS2-2025-2998
Advisory Released Date: 2025-09-16
Advisory Updated Date: 2025-09-16
Severity:
Low
Issue Overview:
A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file. (CVE-2021-40633)
Affected Packages:
giflib
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update giflib or yum update --advisory ALAS2-2025-2998 to update your system.
New Packages:
aarch64:
giflib-4.1.6-9.amzn2.0.4.aarch64
giflib-devel-4.1.6-9.amzn2.0.4.aarch64
giflib-utils-4.1.6-9.amzn2.0.4.aarch64
giflib-debuginfo-4.1.6-9.amzn2.0.4.aarch64
i686:
giflib-4.1.6-9.amzn2.0.4.i686
giflib-devel-4.1.6-9.amzn2.0.4.i686
giflib-utils-4.1.6-9.amzn2.0.4.i686
giflib-debuginfo-4.1.6-9.amzn2.0.4.i686
src:
giflib-4.1.6-9.amzn2.0.4.src
x86_64:
giflib-4.1.6-9.amzn2.0.4.x86_64
giflib-devel-4.1.6-9.amzn2.0.4.x86_64
giflib-utils-4.1.6-9.amzn2.0.4.x86_64
giflib-debuginfo-4.1.6-9.amzn2.0.4.x86_64