PT-2023-22249 · Bzip3 · Bzip3

Asarubboo · Published 2023-04-06 · Updated 2023-04-15 · CVE-2023-29421

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions bzip3 versions prior to 1.2.3

Description An issue was discovered in libbzip3.a. There is an out-of-bounds write in the bz3 decode block function.

Recommendations For versions prior to 1.2.3, update to version 1.2.3 or later to resolve the issue. As a temporary workaround, consider restricting the use of the bz3 decode block function until a patch is available.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2023-29421

Affected Products

Bzip3

References · 15

• 🔥 https://github.com/kspalaiologos/bzip3/issues/94 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-29421 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NA7S7HDUAINOTCSWQZ5LIW756DYY22V2 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-29421 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-29421 · Security Note
• https://osv.dev/vulnerability/CVE-2023-29421 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JLSE25SV7K2NB6FTFT4UHJOJUHBHYHY · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-29421 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-29421 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMLFV2FJK3CM7NJLVPZI5RUAFQZICPWW · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-29421 · Vendor Advisory
• https://github.com/kspalaiologos/bzip3/compare/1.2.2...1.2.3 · Note
• https://github.com/kspalaiologos/bzip3/commit/33b1951f153c3c5dc8ed736b9110437e1a619b7d · Note
• https://t.me/cibsecurity/61530 · Telegram Post
• https://t.me/cvenotify/47675 · Telegram Post