Amazon Linux 2 Security Advisory: ALAS-2022-1788
Advisory Release Date: 2022-04-25 22:58 Pacific
Advisory Updated Date: 2022-04-27 16:35 Pacific
Severity:
Medium
Issue Overview:
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory). (CVE-2021-45960)
Affected Packages:
expat
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 expat to update your system.
New Packages:
aarch64:
expat-2.1.0-12.amzn2.0.4.aarch64
expat-devel-2.1.0-12.amzn2.0.4.aarch64
expat-static-2.1.0-12.amzn2.0.4.aarch64
expat-debuginfo-2.1.0-12.amzn2.0.4.aarch64
i686:
expat-2.1.0-12.amzn2.0.4.i686
expat-devel-2.1.0-12.amzn2.0.4.i686
expat-static-2.1.0-12.amzn2.0.4.i686
expat-debuginfo-2.1.0-12.amzn2.0.4.i686
src:
expat-2.1.0-12.amzn2.0.4.src
x86_64:
expat-2.1.0-12.amzn2.0.4.x86_64
expat-devel-2.1.0-12.amzn2.0.4.x86_64
expat-static-2.1.0-12.amzn2.0.4.x86_64
expat-debuginfo-2.1.0-12.amzn2.0.4.x86_64