NVD Vulnerability Detail

CVE-2012-6706

Summary	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].
Publication Date	June 22, 2017, 10:29 p.m.
Registration Date	Jan. 28, 2021, 3:08 p.m.
Last Update	Nov. 21, 2024, 10:46 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:sophos:threat_detection_engine::::::::			3.36.2

Configuration2		or higher	or less	more than	less than
cpe:2.3:a:rarlab:unrar::::::::			5.5.4

Related information, measures and tools

No	URL	タグ
1	http://securitytracker.com/id?1027725	Third Party Advisory
2	http://securitytracker.com/id?1027725	Third Party Advisory
3	http://telussecuritylabs.com/threats/show/TSL20121207-01	Third Party Advisory
4	http://telussecuritylabs.com/threats/show/TSL20121207-01	Third Party Advisory
5	https://bugs.chromium.org/p/project-zero/issues/detail?id=1286	Exploit Third Party Advisory
6	https://bugs.chromium.org/p/project-zero/issues/detail?id=1286	Exploit Third Party Advisory
7	https://community.sophos.com/kb/en-us/118424#six	Vendor Advisory
8	https://community.sophos.com/kb/en-us/118424#six	Vendor Advisory
9	https://kc.mcafee.com/corporate/index?page=content&id=SB10205
10	https://kc.mcafee.com/corporate/index?page=content&id=SB10205
11	https://lock.cmpxchg8b.com/sophailv2.pdf	Third Party Advisory
12	https://lock.cmpxchg8b.com/sophailv2.pdf	Third Party Advisory
13	https://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/	Vendor Advisory
14	https://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/	Vendor Advisory
15	https://security.gentoo.org/glsa/201708-05
16	https://security.gentoo.org/glsa/201708-05
17	https://security.gentoo.org/glsa/201709-24
18	https://security.gentoo.org/glsa/201709-24
19	https://security.gentoo.org/glsa/201804-16
20	https://security.gentoo.org/glsa/201804-16

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-190	整数オーバーフローまたはラップアラウンド	https://cwe.mitre.org/data/definitions/190.html

JVN Vulnerability Information

Sophos Anti-Virus Threat Detection Engine などの製品で使用される unrar における整数オーバーフローの脆弱性

Title	Sophos Anti-Virus Threat Detection Engine などの製品で使用される unrar における整数オーバーフローの脆弱性
Summary	Sophos Anti-Virus Threat Detection Engine およびその他の製品で使用される unrar には、整数オーバーフローの脆弱性が存在します。
Possible impacts	情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Nov. 5, 2012, midnight
Registration Date	July 25, 2017, 4:30 p.m.
Last Update	July 25, 2017, 4:30 p.m.

Affected System

ソフォス

Sophos Threat Detection Engine 3.37.2 未満

RARLAB

UnRAR 5.5.5 未満

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2012-6706	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6706
National Vulnerability Database (NVD)
2	CVE-2012-6706	https://nvd.nist.gov/vuln/detail/CVE-2012-6706

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-190	https://cwe.mitre.org/data/definitions/190.html

ベンダー情報

No	Name	URL
RARLAB
1	Top Page	http://www.rarlab.com/rar_add.htm
Sophos
2	RAR virtual machine standard filters memory corruption	https://community.sophos.com/kb/en-us/118424#six
3	Sophos products and Tavis Ormandy	https://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/

その他

No	Name	URL
関連文書
1	VMSF_DELTA filter in unrar allows arbitrary memory write	https://bugs.chromium.org/p/project-zero/issues/detail?id=1286&desc=6

Change Log

No	Changed Details	Date of change
0	[2017年07月25日] 掲載	Feb. 17, 2018, 10:37 a.m.