Buffer overflow in UnRar - CVE-2017-12942

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU8605

Buffer overflow in UnRar - CVE-2017-12942

Published: September 25, 2017 / Updated: September 26, 2017


Vulnerability identifier: #VU8605
CSH Severity: High
CVSS v4: 9.3 [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]
CVE-ID: CVE-2017-12942
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 boundary error when processing archives in in the Unpack::LongLZ function in libunrar.a in UnRAR before 5.5.7. A remote unauthenticated attacker can create a specially crafted archive, trick the victim into opening it an execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

UnRar
Gentoo Linux
McAfee Web Gateway

How to mitigate CVE-2017-12942

Update to version 5.5.7.


External References

Related Security Bulletins