Buffer overflow in libarchive - #VU23841
Published: December 30, 2019
Vulnerability identifier: #VU23841
CSH Severity: High
CVSS v4 BT: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: N/A
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing archives in /libarchive/archive_read_support_format_rar5.c in RAR5 reader. The application was using a declared window_size within the supplied archive that lead to memory corruption.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
libarchive
Remediation
Install updates from vendor's website.
libarchive - update to 3.4.1