Amazon Linux 2023 Security Advisory: ALAS2023-2026-1905
Advisory Released Date: 2026-07-07
Advisory Updated Date: 2026-07-07
Severity:
Medium
Issue Overview:
A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked certificate to bypass certificate revocation checks.
To remediate this issue, users should upgrade to AWS-LC 1.71.0 or AWS-LC-FIPS-3.3.0. (CVE-2026-4428)
Affected Packages:
aws-nitro-tpm-tools
Issue Correction:
Run dnf update aws-nitro-tpm-tools --releasever 2023.12.20260706 or dnf update --advisory ALAS2023-2026-1905 --releasever 2023.12.20260706 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:
aws-nitro-tpm-tools-1.1.2-1.amzn2023.aarch64
src:
aws-nitro-tpm-tools-1.1.2-1.amzn2023.src
x86_64:
aws-nitro-tpm-tools-1.1.2-1.amzn2023.x86_64