NVD Vulnerability Detail

CVE-2016-7944

Summary	Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.
Publication Date	Dec. 14, 2016, 5:59 a.m.
Registration Date	Jan. 26, 2021, 2:17 p.m.
Last Update	Nov. 21, 2024, 11:58 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:x.org:libxfixes:::::::x86:*			5.0.2

Related information, measures and tools

No	URL	refsource	タグ
1	http://www.openwall.com/lists/oss-security/2016/10/04/2
2	http://www.openwall.com/lists/oss-security/2016/10/04/2
3	http://www.openwall.com/lists/oss-security/2016/10/04/4
4	http://www.openwall.com/lists/oss-security/2016/10/04/4
5	http://www.securityfocus.com/bid/93361
6	http://www.securityfocus.com/bid/93361
7	http://www.securitytracker.com/id/1036945
8	http://www.securitytracker.com/id/1036945
9	https://cgit.freedesktop.org/xorg/lib/libXfixes/commit/?id=61c1039ee23a2d1de712843bed3480654d7ef42e
10	https://cgit.freedesktop.org/xorg/lib/libXfixes/commit/?id=61c1039ee23a2d1de712843bed3480654d7ef42e
11	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CE6VJWBMOWLSCH4OP4TAEPIA7NP53ON/
12	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CE6VJWBMOWLSCH4OP4TAEPIA7NP53ON/
13	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GE43MDCRGS4R7MRRZNVSLREHRLU5OHCV/
14	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GE43MDCRGS4R7MRRZNVSLREHRLU5OHCV/
15	https://lists.x.org/archives/xorg-announce/2016-October/002720.html
16	https://lists.x.org/archives/xorg-announce/2016-October/002720.html
17	https://security.gentoo.org/glsa/201704-03
18	https://security.gentoo.org/glsa/201704-03

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-264	認可・権限・アクセス制御	https://cwe.mitre.org/data/definitions/264.html
2	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

X.org libXfixes における整数オーバーフローの脆弱性

Title	X.org libXfixes における整数オーバーフローの脆弱性
Summary	32-bit プラットフォーム上で稼動する X.org libXfixes には、整数オーバーフローの脆弱性が存在します。
Possible impacts	リモートの X サーバにより、INT_MAX の length 値を介して、クライアントのデータ読み込みの停止および同期の解除を誘発されることで、権限を取得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	Sept. 25, 2016, midnight
Registration Date	Dec. 19, 2016, 3:06 p.m.
Last Update	Dec. 19, 2016, 3:06 p.m.

Affected System

X.Org Foundation

libX11 1.6.4 未満

Fedora Project

Fedora 24

Fedora 25

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-2016-7944	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7944
National Vulnerability Database (NVD)
2	CVE-2016-7944	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-7944

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
2	CWE-264	https://jvndb.jvn.jp/ja/cwe/CWE-264.html

ベンダー情報

No	Name	URL
Fedora Update Notification
1	FEDORA-2016-72d7f05b90	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GE43MDCRGS4R7MRRZNVSLREHRLU5OHCV/
2	FEDORA-2016-ff5a2f4839	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4CE6VJWBMOWLSCH4OP4TAEPIA7NP53ON/
X.Org Foundation
3	Integer overflow on illegal server response	https://cgit.freedesktop.org/xorg/lib/libXfixes/commit/?id=61c1039ee23a2d1de712843bed3480654d7ef42e
4	X.Org security advisory: Protocol handling issues in X Window System client libraries	https://lists.x.org/archives/xorg-announce/2016-October/002720.html

Change Log

No	Changed Details	Date of change
0	[2016年12月19日] 掲載	Feb. 17, 2018, 10:37 a.m.