CVE-2012-6706

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].

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/	Vendor Advisory
https://lock.cmpxchg8b.com/sophailv2.pdf	Third Party Advisory
https://community.sophos.com/kb/en-us/118424#six	Vendor Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1286	Exploit Third Party Advisory
http://telussecuritylabs.com/threats/show/TSL20121207-01	Third Party Advisory
http://securitytracker.com/id?1027725	Third Party Advisory
https://security.gentoo.org/glsa/201708-05
https://security.gentoo.org/glsa/201709-24
https://kc.mcafee.com/corporate/index?page=content&id=SB10205
https://security.gentoo.org/glsa/201804-16

Configurations

Configuration 1 (hide)

cpe:2.3:a:sophos:threat_detection_engine:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:rarlab:unrar:*:*:*:*:*:*:*:*

Information

Published : 2017-06-22 06:29

Updated : 2018-10-21 03:29

NVD link : CVE-2012-6706

Mitre link : CVE-2012-6706

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

Products Affected

rarlab

unrar

sophos

threat_detection_engine

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