Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AWS | AWS-LC | 1.24.0 – < 1.71.0 | 1.71.0 |
| AWS | AWS-LC-FIPS | 3.0.0 – < 3.3.0 | 3.3.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | amazon-efs-utils | 3.0.0-4.amzn2023 | ALAS2023-2026-1564 |
| Amazon Linux 2023 | aws-nitro-tpm-tools | 1.1.2-1.amzn2023 | ALAS2023-2026-1905 |
| Amazon Linux 2023 | mount-s3 | 1.22.3-1.amzn2023 | ALAS2023-2026-1655 |
| Amazon Linux 2 | amazon-efs-utils | 3.0.0-4.amzn2 | ALAS2-2026-3245 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| crates.io | aws-lc-fips-sys | >= 0.13.0, < 0.13.13 | 0.13.13 | GHSA-9f94-5g5w-gf6r |
| crates.io | aws-lc-sys | >= 0.15.0, < 0.39.0 | 0.39.0 | GHSA-9f94-5g5w-gf6r |
Advisories 4
- ALAS2023-2026-1905 Moderate: aws-nitro-tpm-tools security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jul 7, 2026
- ALAS2023-2026-1655 Moderate: mount-s3 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 13, 2026
- ALAS2-2026-3245 Important: amazon-efs-utils security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 13, 2026
- ALAS2023-2026-1564 Important: amazon-efs-utils security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 13, 2026