Amazon Linux 2023 Security Advisory: ALAS2023-2026-1424
Advisory Released Date: 2026-02-18
Advisory Updated Date: 2026-02-18
Severity:
Medium
Issue Overview:
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation. (CVE-2026-25210)
Affected Packages:
firefox
Issue Correction:
Run dnf update firefox --releasever 2023.10.20260216 or dnf update --advisory ALAS2023-2026-1424 --releasever 2023.10.20260216 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
aarch64:
firefox-debuginfo-140.7.0-1.amzn2023.0.2.aarch64
firefox-140.7.0-1.amzn2023.0.2.aarch64
firefox-debugsource-140.7.0-1.amzn2023.0.2.aarch64
src:
firefox-140.7.0-1.amzn2023.0.2.src
x86_64:
firefox-debuginfo-140.7.0-1.amzn2023.0.2.x86_64
firefox-140.7.0-1.amzn2023.0.2.x86_64
firefox-debugsource-140.7.0-1.amzn2023.0.2.x86_64