PT-2023-11638 · Xz+2 · Xz+2

Snappyjack · Published 2023-08-22 · Updated 2024-11-05 · CVE-2020-22916

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions XZ version 5.2.5

Description An issue in XZ allows attackers to cause a denial of service via decompression of a crafted file. The vendor disputes the claims of "endless output" and "denial of service" because decompression of a 17,486 bytes file always results in 114,881,179 bytes, which is often a reasonable size increase.

Recommendations For XZ version 5.2.5, update to version 5.2.9 to fix the security issue.

Exploit

Fix

Related Identifiers

ALT-PU-2024-1246

ALT-PU-2024-14986

ALT-PU-2024-8803

CVE-2020-22916

Affected Products

Alt Linux

Xz

Xz Utils

References · 15

• 🔥 https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability · Exploit
• 🔥 http://web.archive.org/web/20230918084612/https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability · Exploit
• https://osv.dev/vulnerability/CVE-2020-22916 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-22916 · Security Note
• https://ubuntu.com/security/CVE-2020-22916 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-22916 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-22916 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-22916 · Vendor Advisory
• https://github.com/tukaani-project/xz/issues/61 · Note
• https://bugzilla.suse.com/show_bug.cgi?id=1214590 · Note
• https://twitter.com/barsa_net/status/1811400947072926083 · Twitter Post
• https://twitter.com/gcp_update_bot/status/1700411237040103638 · Twitter Post
• https://t.me/cvenotify/86626 · Telegram Post
• https://tukaani.org/xz · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2234987 · Note