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CVE-2012-6706

Publication date 22 June 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

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].

Status

Package Ubuntu Release Status
libclamunrar 19.04 disco
Fixed 0.99-4ubuntu1
18.10 cosmic
Fixed 0.99-4ubuntu1
18.04 LTS bionic
Fixed 0.99-4ubuntu1
17.10 artful
Fixed 0.99-4ubuntu1
17.04 zesty Ignored end of life
16.04 LTS xenial
Fixed 0.99-1ubuntu0.1
14.04 LTS trusty
Fixed 0.99-0ubuntu0.14.04.2
unrar-nonfree 19.04 disco
Not affected
18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
17.10 artful
Not affected
17.04 zesty Ignored end of life
16.10 yakkety Ignored end of life
16.04 LTS xenial
Fixed 1:5.3.2-1+deb9u1build0.16.04.1
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
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