Release Info

Advisory: CLSA-2025:1760093905

OS: Ubuntu 20.04

Public date: 2025-10-10 10:58:27.091157

Project: python

Version: 2.7.18-6

Errata link: https://errata.tuxcare.com/els_alt_python/ubuntu20.04/CLSA-2025-1760093905.html

Changelog

* SECURITY UPDATE: DoS in case of malicious XML entity declarations - debian/patches/CVE-2022-48565.patch: reject XML entity declarations in plist files - CVE-2022-48565 * SECURITY UPDATE: Bypassing blocklisting methods by supplying a URL that starts with blank characters - debian/patches/CVE-2023-24329.patch, debian/patches/CVE-2023-24329-2.patch: prevent urllib.parse.urlparse from accepting schemes that don't begin with an alphabetical ASCII character - CVE-2023-24329 * SECURITY UPDATE: ReDoS via specifically-crafted tar archives - debian/patches/CVE-2024-6232.patch: remove backtracking when parsing tarfile - CVE-2024-6232 * SECURITY UPDATE: Excessive CPU usage while parsing a cookie value - debian/patches/CVE-2024-7592.patch: fix quadratic complexity in parsing double-quoted cookie values with backslashes - CVE-2024-7592 * SECURITY UPDATE: CPU DoS by crafting inputs to the IDNA decoder - debian/patches/CVE-2022-45061.patch: fix quadratic time idna decoding - CVE-2022-45061 * SECURITY UPDATE: Use-after-free via heappushpop in heapq - debian/patches/CVE-2022-48560.patch: fix posible crash in heapq with custom comparison operators - debian/patches/CVE-2022-48560-2.patch: add tests for CVE-2022-48560 - CVE-2022-48560 * SECURITY UPDATE: DoS by HTTP client infinite line reading from malicious server after a 100 Continue response - debian/patches/CVE-2021-3737.patch: stop reading a header if it's too long - CVE-2021-3737 * SECURITY UPDATE: A flaw in the urllib.parse module - debian/patches/CVE-2022-0391.patch: make urlparse sanitize URLs containing ASCII newline and tabs - CVE-2022-0391

Update

Update command: apt-get update apt-get --only-upgrade install alt-python*

Packages list

alt-python27_2.7.18-6_amd64.deb alt-python27-debug_2.7.18-6_amd64.deb alt-python27-devel_2.7.18-6_amd64.deb alt-python27-idle_2.7.18-6_amd64.deb alt-python27-libs_2.7.18-6_amd64.deb alt-python27-test_2.7.18-6_amd64.deb alt-python27-tkinter_2.7.18-6_amd64.deb alt-python27-tools_2.7.18-6_amd64.deb

CVEs

CVE-2024-6232
CVE-2022-48565
CVE-2022-48560
CVE-2022-45061
CVE-2024-7592
CVE-2019-20907
CVE-2021-3737
CVE-2023-24329