Amazon Linux 2 Security Advisory: ALAS2-2025-2961
Advisory Released Date: 2025-08-19
Advisory Updated Date: 2025-08-19
There is a defect in the CPython "tarfile" module affecting the "TarFile" extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives.
This vulnerability can be mitigated by including the following patch after importing the "tarfile" module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1 (CVE-2025-8194)
Affected Packages:
python
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 python or yum update --advisory ALAS2-2025-2961 to update your system.
aarch64:
python-2.7.18-1.amzn2.0.14.aarch64
python-libs-2.7.18-1.amzn2.0.14.aarch64
python-devel-2.7.18-1.amzn2.0.14.aarch64
python-tools-2.7.18-1.amzn2.0.14.aarch64
tkinter-2.7.18-1.amzn2.0.14.aarch64
python-test-2.7.18-1.amzn2.0.14.aarch64
python-debug-2.7.18-1.amzn2.0.14.aarch64
python-debuginfo-2.7.18-1.amzn2.0.14.aarch64
i686:
python-2.7.18-1.amzn2.0.14.i686
python-libs-2.7.18-1.amzn2.0.14.i686
python-devel-2.7.18-1.amzn2.0.14.i686
python-tools-2.7.18-1.amzn2.0.14.i686
tkinter-2.7.18-1.amzn2.0.14.i686
python-test-2.7.18-1.amzn2.0.14.i686
python-debug-2.7.18-1.amzn2.0.14.i686
python-debuginfo-2.7.18-1.amzn2.0.14.i686
src:
python-2.7.18-1.amzn2.0.14.src
x86_64:
python-2.7.18-1.amzn2.0.14.x86_64
python-libs-2.7.18-1.amzn2.0.14.x86_64
python-devel-2.7.18-1.amzn2.0.14.x86_64
python-tools-2.7.18-1.amzn2.0.14.x86_64
tkinter-2.7.18-1.amzn2.0.14.x86_64
python-test-2.7.18-1.amzn2.0.14.x86_64
python-debug-2.7.18-1.amzn2.0.14.x86_64
python-debuginfo-2.7.18-1.amzn2.0.14.x86_64