Vulmon
Amazon Linux 2 Security Advisory: ALAS-2023-1917
Advisory Release Date: 2023-01-18 00:17 Pacific
Advisory Updated Date: 2023-01-20 23:29 Pacific
Severity:
Important
References:
CVE-2022-45061
Issue Overview:
An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16. (CVE-2022-45061)
Affected Packages:
python3
Issue Correction:
Run yum update python3 to update your system.
New Packages:
aarch64:
python3-3.7.16-1.amzn2.0.1.aarch64
python3-libs-3.7.16-1.amzn2.0.1.aarch64
python3-devel-3.7.16-1.amzn2.0.1.aarch64
python3-tools-3.7.16-1.amzn2.0.1.aarch64
python3-tkinter-3.7.16-1.amzn2.0.1.aarch64
python3-test-3.7.16-1.amzn2.0.1.aarch64
python3-debug-3.7.16-1.amzn2.0.1.aarch64
python3-debuginfo-3.7.16-1.amzn2.0.1.aarch64
i686:
python3-3.7.16-1.amzn2.0.1.i686
python3-libs-3.7.16-1.amzn2.0.1.i686
python3-devel-3.7.16-1.amzn2.0.1.i686
python3-tools-3.7.16-1.amzn2.0.1.i686
python3-tkinter-3.7.16-1.amzn2.0.1.i686
python3-test-3.7.16-1.amzn2.0.1.i686
python3-debug-3.7.16-1.amzn2.0.1.i686
python3-debuginfo-3.7.16-1.amzn2.0.1.i686
src:
python3-3.7.16-1.amzn2.0.1.src
x86_64:
python3-3.7.16-1.amzn2.0.1.x86_64
python3-libs-3.7.16-1.amzn2.0.1.x86_64
python3-devel-3.7.16-1.amzn2.0.1.x86_64
python3-tools-3.7.16-1.amzn2.0.1.x86_64
python3-tkinter-3.7.16-1.amzn2.0.1.x86_64
python3-test-3.7.16-1.amzn2.0.1.x86_64
python3-debug-3.7.16-1.amzn2.0.1.x86_64
python3-debuginfo-3.7.16-1.amzn2.0.1.x86_64