ALAS2-2026-3274

Amazon Linux 2 Security Advisory: ALAS2-2026-3274
Advisory Released Date: 2026-04-30
Advisory Updated Date: 2026-04-30
Severity: Medium
Issue Overview:

NULL Pointer Dereference When Processing a Delta CRL

NOTE: https://openssl-library.org/news/secadv/20260407.txt (CVE-2026-28388)

Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (CVE-2026-28389)

Possible NULL dereference when processing CMS KeyTransportRecipientInfo (CVE-2026-28390)


Affected Packages:

openssl


Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


Issue Correction:
Run yum update openssl or yum update --advisory ALAS2-2026-3274 to update your system.

New Packages:
aarch64:
    openssl-1.0.2k-24.amzn2.0.20.aarch64
    openssl-libs-1.0.2k-24.amzn2.0.20.aarch64
    openssl-devel-1.0.2k-24.amzn2.0.20.aarch64
    openssl-static-1.0.2k-24.amzn2.0.20.aarch64
    openssl-perl-1.0.2k-24.amzn2.0.20.aarch64
    openssl-debuginfo-1.0.2k-24.amzn2.0.20.aarch64

i686:
    openssl-1.0.2k-24.amzn2.0.20.i686
    openssl-libs-1.0.2k-24.amzn2.0.20.i686
    openssl-devel-1.0.2k-24.amzn2.0.20.i686
    openssl-static-1.0.2k-24.amzn2.0.20.i686
    openssl-perl-1.0.2k-24.amzn2.0.20.i686
    openssl-debuginfo-1.0.2k-24.amzn2.0.20.i686

src:
    openssl-1.0.2k-24.amzn2.0.20.src

x86_64:
    openssl-1.0.2k-24.amzn2.0.20.x86_64
    openssl-libs-1.0.2k-24.amzn2.0.20.x86_64
    openssl-devel-1.0.2k-24.amzn2.0.20.x86_64
    openssl-static-1.0.2k-24.amzn2.0.20.x86_64
    openssl-perl-1.0.2k-24.amzn2.0.20.x86_64
    openssl-debuginfo-1.0.2k-24.amzn2.0.20.x86_64

Additional References

Release Notes:  Amazon Linux 2 Release Notes

Red Hat: CVE-2026-28388, CVE-2026-28389, CVE-2026-28390

Mitre: CVE-2026-28388, CVE-2026-28389, CVE-2026-28390