Amazon Linux 2023 Security Advisory: ALAS2023-2026-1855
Advisory Released Date: 2026-06-22
Advisory Updated Date: 2026-06-22
Severity:
Important
Issue Overview:
libnfs through 6.0.2 before 55c18ea does not validate a string size, leading to an integer overflow during a connection to a crafted NFS server. This occurs in libnfs_zdr_string in lib/libnfs-zdr.c. (CVE-2026-53689)
Affected Packages:
libnfs
Issue Correction:
Run dnf update libnfs --releasever 2023.12.20260622 or dnf update --advisory ALAS2023-2026-1855 --releasever 2023.12.20260622 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:
libnfs-debugsource-4.0.0-4.amzn2023.0.3.aarch64
libnfs-utils-debuginfo-4.0.0-4.amzn2023.0.3.aarch64
libnfs-debuginfo-4.0.0-4.amzn2023.0.3.aarch64
libnfs-4.0.0-4.amzn2023.0.3.aarch64
libnfs-utils-4.0.0-4.amzn2023.0.3.aarch64
libnfs-devel-4.0.0-4.amzn2023.0.3.aarch64
src:
libnfs-4.0.0-4.amzn2023.0.3.src
x86_64:
libnfs-debugsource-4.0.0-4.amzn2023.0.3.x86_64
libnfs-debuginfo-4.0.0-4.amzn2023.0.3.x86_64
libnfs-utils-debuginfo-4.0.0-4.amzn2023.0.3.x86_64
libnfs-4.0.0-4.amzn2023.0.3.x86_64
libnfs-devel-4.0.0-4.amzn2023.0.3.x86_64
libnfs-utils-4.0.0-4.amzn2023.0.3.x86_64