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CVE-2012-6706

CVE information

Published

6 years ago

Last Modified

5 years ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

Critical

Impact Analysis

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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]..

CVSSv2.0 Score

Severity
High
Base Score
10/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
10/10
Confidentiality Impact
Complete
Availability Impact
Complete
Integrity Impact
Complete

CVSSv3.1 Score

Severity
Critical
Base Score
9.8/10
Exploit Score
3.9/10
Access Vector
Network
Access Complexity
Low
Privileges Required
None
Impact Score
5.9/10
Confidentiality Impact
High
Availability Impact
High
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:sophos:threat_detection_engine:*:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:rarlab:unrar:*:*:*:*:*:*:*:*
  Yes
- -

References