ALAS2-2026-3815

Amazon Linux 2 Security Advisory: ALAS2-2026-3815
Advisory Released Date: 2026-07-20
Advisory Updated Date: 2026-07-20
Severity: Important
Issue Overview:

BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow (CVE-2026-56001)

PCF Font Parsing Heap Buffer Overflow (CVE-2026-56002)

computeProps Property Buffer Heap Buffer Overflow (CVE-2026-56003)


Affected Packages:

libXfont


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 libXfont or yum update --advisory ALAS2-2026-3815 to update your system.

New Packages:
aarch64:
    libXfont-1.5.4-1.amzn2.0.1.aarch64
    libXfont-devel-1.5.4-1.amzn2.0.1.aarch64
    libXfont-debuginfo-1.5.4-1.amzn2.0.1.aarch64

i686:
    libXfont-1.5.4-1.amzn2.0.1.i686
    libXfont-devel-1.5.4-1.amzn2.0.1.i686
    libXfont-debuginfo-1.5.4-1.amzn2.0.1.i686

src:
    libXfont-1.5.4-1.amzn2.0.1.src

x86_64:
    libXfont-1.5.4-1.amzn2.0.1.x86_64
    libXfont-devel-1.5.4-1.amzn2.0.1.x86_64
    libXfont-debuginfo-1.5.4-1.amzn2.0.1.x86_64

Additional References

Release Notes:  Amazon Linux 2 Release Notes

Red Hat: CVE-2026-56001, CVE-2026-56002, CVE-2026-56003

Mitre: CVE-2026-56001, CVE-2026-56002, CVE-2026-56003