NVD Vulnerability Detail

CVE-2011-4131

Summary	The NFSv4 implementation in the Linux kernel before 3.2.2 does not properly handle bitmap sizes in GETACL replies, which allows remote NFS servers to cause a denial of service (OOPS) by sending an excessive number of bitmap words.
Publication Date	May 17, 2012, 8 p.m.
Registration Date	Jan. 28, 2021, 4:39 p.m.
Last Update	Nov. 21, 2024, 10:31 a.m.

Affected software configurations

Related information, measures and tools

No	URL	refsource	タグ
1	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bf118a342f10dafe44b14451a1392c3254629a1f
2	http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081280.html
3	http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
4	http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
5	http://rhn.redhat.com/errata/RHSA-2012-0862.html
6	http://rhn.redhat.com/errata/RHSA-2012-1541.html
7	http://secunia.com/advisories/48898
8	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
9	http://www.openwall.com/lists/oss-security/2011/11/12/1
10	https://bugzilla.redhat.com/show_bug.cgi?id=747106
11	https://github.com/torvalds/linux/commit/bf118a342f10dafe44b14451a1392c3254629a1f
12	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bf118a342f10dafe44b14451a1392c3254629a1f
13	https://github.com/torvalds/linux/commit/bf118a342f10dafe44b14451a1392c3254629a1f
14	https://bugzilla.redhat.com/show_bug.cgi?id=747106
15	http://www.openwall.com/lists/oss-security/2011/11/12/1
16	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
17	http://secunia.com/advisories/48898
18	http://rhn.redhat.com/errata/RHSA-2012-1541.html
19	http://rhn.redhat.com/errata/RHSA-2012-0862.html
20	http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
21	http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
22	http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081280.html

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-189	数値処理の問題	https://cwe.mitre.org/data/definitions/189.html

JVN Vulnerability Information

Linux Kernel の NFSv4 実装におけるサービス運用妨害 (OOPS) の脆弱性

Title	Linux Kernel の NFSv4 実装におけるサービス運用妨害 (OOPS) の脆弱性
Summary	Linux Kernel の NFSv4 実装は、GETACL 応答のビットマップサイズを適切に処理しないため、サービス運用妨害 (OOPS) 状態となる脆弱性が存在します。
Possible impacts	リモート NFS サーバにより、過度に多くのビットマップの単語を送信されることで、サービス運用妨害 (OOPS) 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	May 17, 2012, midnight
Registration Date	May 18, 2012, 2:41 p.m.
Last Update	May 18, 2012, 2:41 p.m.

Affected System

Linux

Linux Kernel 3.2.2 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-2011-4131	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4131
National Vulnerability Database (NVD)
2	CVE-2011-4131	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-4131

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-119	https://jvndb.jvn.jp/ja/cwe/CWE-119.html

ベンダー情報

No	Name	URL
Linux Kernel
1	ChangeLog-3.2.2	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
2	Linux Kernel Archives	http://www.kernel.org
Red Hat Security Advisory
3	RHSA-2012:0333	https://rhn.redhat.com/errata/RHSA-2012-0333.html

Change Log

No	Changed Details	Date of change
0	[2012年05月18日] 掲載	Feb. 17, 2018, 10:37 a.m.