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CVE-2012-6706

Published: 22 June 2017

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].

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
libclamunrar
Launchpad, Ubuntu, Debian
artful
Released (0.99-4ubuntu1)
bionic
Released (0.99-4ubuntu1)
cosmic
Released (0.99-4ubuntu1)
disco
Released (0.99-4ubuntu1)
trusty
Released (0.99-0ubuntu0.14.04.2)
upstream
Released (0.99-4)
xenial
Released (0.99-1ubuntu0.1)
zesty Ignored
(end of life)
unrar-nonfree
Launchpad, Ubuntu, Debian
artful Not vulnerable
(5.5.8-1)
bionic Not vulnerable
(5.5.8-1)
cosmic Not vulnerable
(5.5.8-1)
disco Not vulnerable
(5.5.8-1)
trusty Does not exist
(trusty was needed)
upstream
Released (1:5.3.2-1+deb9u1, 1:5.5.5-1)
xenial
Released (1:5.3.2-1+deb9u1build0.16.04.1)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H