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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 10.10% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 95.5% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-06-22 13:00Z9 YR AGO
- Last updated
- 2024-08-06 21:36Z2 YR AGO
- Reserved
- 2017-06-22
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-190Integer Overflow or WraparoundBase
- Data version
- 5.1
- Document digest
- 9c23acb2ad7b2bf967d6da09a419f790b84eb198ded4c76c6bfb96488d76b479
05 Affected products
06 References
- bugs.chromium.orghttps://bugs.chromium.org/p/project-zero/issues/detail?id=1286
- nakedsecurity.sophos.comhttps://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/
- security.gentoo.orgGLSA-201709-24https://security.gentoo.org/glsa/201709-24
- community.sophos.comhttps://community.sophos.com/kb/en-us/118424#six
- security.gentoo.orgGLSA-201708-05https://security.gentoo.org/glsa/201708-05
- lock.cmpxchg8b.comhttps://lock.cmpxchg8b.com/sophailv2.pdf
- security.gentoo.orgGLSA-201804-16https://security.gentoo.org/glsa/201804-16
- kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10205
- telussecuritylabs.comhttp://telussecuritylabs.com/threats/show/TSL20121207-01
- securitytracker.comhttp://securitytracker.com/id?1027725
07 Fixed in
Arch Linux
- clamav Fixed in 0.99.4-1
- libunrar Fixed in 1:5.5.5-1
- unrar Fixed in 1:5.5.5-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- libclamunrar Fixed in 0.99-4
- unrar-nonfree Fixed in 1:5.5.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libclamunrar Fixed in 0.99-4
- unrar-nonfree Fixed in 1:5.5.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libclamunrar Fixed in 0.99-4
- unrar-nonfree Fixed in 1:5.5.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- libclamunrar Fixed in 0.99-0ubuntu0.14.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- libclamunrar Fixed in 0.99-1ubuntu0.1
- unrar-nonfree Fixed in 1:5.3.2-1+deb9u1build0.16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- libclamunrar Fixed in 0.99-4ubuntu1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.