Buffer overflow in Bzip3 - CVE-2023-29420
Published: August 18, 2023
Vulnerability identifier: #VU79706
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2023-29420
CWE-ID: CWE-119
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 execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the bz3_decode_block() function in libbzip3.a. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.
External links
- https://github.com/kspalaiologos/bzip3/commit/bb06deb85f1c249838eb938e0dab271d4194f8fa
- https://github.com/kspalaiologos/bzip3/compare/1.2.2...1.2.3
- https://github.com/kspalaiologos/bzip3/issues/92
- 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/