CVE-2012-6706

CRITICAL

Sophos Threat Detection Engine < 3.37.2 - Remote Code Execution via Integer Overflow in VMSF_DELTA Processing

Title source: llm
STIX 2.1

Description

A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the "DestPos" variable, which allows the attacker to write out of bounds when setting Mem[DestPos].

References (10)

Core 10
Core References
Exploit, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/project-zero/issues/detail?id=1286
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201709-24
Vendor Advisory x_refsource_misc
https://community.sophos.com/kb/en-us/118424#six
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201708-05
Third Party Advisory x_refsource_misc
https://lock.cmpxchg8b.com/sophailv2.pdf
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201804-16
Third Party Advisory x_refsource_misc
http://telussecuritylabs.com/threats/show/TSL20121207-01
Third Party Advisory x_refsource_misc
http://securitytracker.com/id?1027725

Scores

CVSS v3 9.8
EPSS 0.0243
EPSS Percentile 85.4%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-190
Status published
Products (2)
rarlab/unrar < 5.5.4
sophos/threat_detection_engine < 3.36.2
Published Jun 22, 2017
Tracked Since Feb 18, 2026