Out-of-bounds read in Bzip3 - CVE-2023-29419
Published: August 18, 2023
Vulnerability identifier: #VU79705
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-29419
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Bzip3
Bzip3
Software vendor:
Bzip3 Project
Bzip3 Project
Description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to an out-of-bounds read within the bz3_decode_block() function in libbzip3.a. A remote attacker can pass a specially crafted archive to the application and crash it.
Remediation
Install update from vendor's website.
External links
- https://github.com/kspalaiologos/bzip3/compare/1.2.2...1.2.3
- https://github.com/kspalaiologos/bzip3/issues/92
- https://github.com/kspalaiologos/bzip3/commit/8ec8ce7d3d58bf42dabc47e4cc53aa27051bd602
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NA7S7HDUAINOTCSWQZ5LIW756DYY22V2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4JLSE25SV7K2NB6FTFT4UHJOJUHBHYHY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NMLFV2FJK3CM7NJLVPZI5RUAFQZICPWW/