Amazon Linux 2 Security Advisory: ALAS-2022-1759
Advisory Release Date: 2022-03-07 23:31 Pacific
Advisory Updated Date: 2022-04-25 23:53 Pacific
Severity:
Important
Issue Overview:
An integer overflow was found in expat. The issue occurs in storeRawNames() by abusing the m_buffer expansion logic to allow allocations very close to INT_MAX and out-of-bounds heap writes. This flaw can cause a denial of service or potentially arbitrary code execution. (CVE-2022-25315)
Affected Packages:
expat, thunderbird
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.amzn2.0.2.aarch64
expat-devel-2.1.0-12.amzn2.0.2.aarch64
expat-static-2.1.0-12.amzn2.0.2.aarch64
expat-debuginfo-2.1.0-12.amzn2.0.2.aarch64
thunderbird-91.7.0-2.amzn2.0.1.aarch64
thunderbird-debuginfo-91.7.0-2.amzn2.0.1.aarch64
i686:
expat-2.1.0-12.amzn2.0.2.i686
expat-devel-2.1.0-12.amzn2.0.2.i686
expat-static-2.1.0-12.amzn2.0.2.i686
expat-debuginfo-2.1.0-12.amzn2.0.2.i686
src:
expat-2.1.0-12.amzn2.0.2.src
thunderbird-91.7.0-2.amzn2.0.1.src
x86_64:
expat-2.1.0-12.amzn2.0.2.x86_64
expat-devel-2.1.0-12.amzn2.0.2.x86_64
expat-static-2.1.0-12.amzn2.0.2.x86_64
expat-debuginfo-2.1.0-12.amzn2.0.2.x86_64
thunderbird-91.7.0-2.amzn2.0.1.x86_64
thunderbird-debuginfo-91.7.0-2.amzn2.0.1.x86_64