Amazon Linux 2 Security Advisory: ALAS2-2026-3234
Advisory Released Date: 2026-04-14
Advisory Updated Date: 2026-04-14
Severity:
Important
Issue Overview:
A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution. (CVE-2026-4775)
Affected Packages:
compat-libtiff3
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 compat-libtiff3 or yum update --advisory ALAS2-2026-3234 to update your system.
New Packages:
aarch64:
compat-libtiff3-3.9.4-12.amzn2.0.9.aarch64
compat-libtiff3-debuginfo-3.9.4-12.amzn2.0.9.aarch64
i686:
compat-libtiff3-3.9.4-12.amzn2.0.9.i686
compat-libtiff3-debuginfo-3.9.4-12.amzn2.0.9.i686
src:
compat-libtiff3-3.9.4-12.amzn2.0.9.src
x86_64:
compat-libtiff3-3.9.4-12.amzn2.0.9.x86_64
compat-libtiff3-debuginfo-3.9.4-12.amzn2.0.9.x86_64