Main Vulnerability Database Vulnerabilities #VU8604

Out-of-bounds read in UnRar - CVE-2017-12941

Published: September 26, 2017

Vulnerability identifier: #VU8604

CSH Severity: Low

CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-12941

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to crash the affected application.

The vulnerability exists due to out-of-bounds read in libunrar.a in UnRAR before 5.5.7 in the Unpack::Unpack20 function. A remote attacker can create a specially crafted archive and crash the affected application.

Affected software

UnRar
Gentoo Linux
McAfee Web Gateway

How to mitigate CVE-2017-12941

Update to version 5.5.7.

External References

http://seclists.org/oss-sec/2017/q3/290

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