Amazon Linux 2023 Security Advisory: ALAS2023-2026-3233
Advisory Released Date: 2026-10-16
Advisory Updated Date: 2026-10-26
Severity:
Important
Issue Overview:
Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruption on a connecting client application, potentially leading to arbitrary code execution, via a crafted sequence of HTTP/2 HEADERS frames.
To remediate this issue, users should upgrade to aws-c-http version 0.11.0. (CVE-2026-12043)
Affected Packages:
mount-s3
Issue Correction:
Run dnf update mount-s3 --releasever 2023.12.20261016 or dnf update --advisory ALAS2023-2026-3233 --releasever 2023.12.20261016 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:
mount-s3-debuginfo-1.23.0-1.amzn2023.aarch64
mount-s3-1.23.0-1.amzn2023.aarch64
mount-s3-debugsource-1.23.0-1.amzn2023.aarch64
src:
mount-s3-1.23.0-1.amzn2023.src
x86_64:
mount-s3-debuginfo-1.23.0-1.amzn2023.x86_64
mount-s3-1.23.0-1.amzn2023.x86_64
mount-s3-debugsource-1.23.0-1.amzn2023.x86_64