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JVN脆弱性詳細

Linux Kernel の mem_cgroup_usage_unregister_event 関数におけるサービス運用妨害 (DoS) の脆弱性

Title	Linux Kernel の mem_cgroup_usage_unregister_event 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary	Linux Kernel の mm/memcontrol.c 内の mem_cgroup_usage_unregister_event 関数は、同じ eventfd にアタッチされた複数のイベントを適切に処理しないため、サービス運用妨害 (NULL ポインタデリファレンスおよびシステムクラッシュ) 状態となる、またはその他の詳細不明な影響を受ける脆弱性が存在します。
Possible impacts	ローカルユーザにより、メモリしきい値イベントを登録されることで、サービス運用妨害 (NULL ポインタデリファレンスおよびシステムクラッシュ) 状態にされる、またはその他の詳細不明な影響を受け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, 4:02 p.m.
Last Update	May 18, 2012, 4:02 p.m.

CVSS2.0 : 危険
Score	10
Vector	AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected System

Linux

Linux Kernel 3.2.10 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-2012-1146	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1146
National Vulnerability Database (NVD)
2	CVE-2012-1146	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-1146

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-DesignError	https://www.ipa.go.jp/security/vuln/CWE.html#CWEDesignError

ベンダー情報

No	Name	URL
Linux Kernel
1	ChangeLog-3.2.10	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10
2	Linux Kernel Archives	http://www.kernel.org

Change Log

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

NVD Vulnerability Information

CVE-2012-1146

Summary	The mem_cgroup_usage_unregister_event function in mm/memcontrol.c in the Linux kernel before 3.2.10 does not properly handle multiple events that are attached to the same eventfd, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by registering memory threshold events.
Publication Date	May 17, 2012, 8 p.m.
Registration Date	Jan. 28, 2021, 2:55 p.m.
Last Update	Nov. 21, 2024, 10:36 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:o:linux:linux_kernel::::::::					3.2.10

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:16:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp2::::::
cpe:2.3:o:suse:linux_enterprise_server:11:sp2::::vmware::*
cpe:2.3:o:suse:linux_enterprise_server:11:sp2:::-:::*
cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp2::::::

Related information, measures and tools

No	URL	タグ
1	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=371528caec553785c37f73fa3926ea0de84f986f
2	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=371528caec553785c37f73fa3926ea0de84f986f
3	http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.html	Mailing List Third Party Advisory
4	http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.html	Mailing List Third Party Advisory
5	http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html	Mailing List Third Party Advisory
6	http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html	Mailing List Third Party Advisory
7	http://secunia.com/advisories/48898	Broken Link
8	http://secunia.com/advisories/48898	Broken Link
9	http://secunia.com/advisories/48964	Broken Link
10	http://secunia.com/advisories/48964	Broken Link
11	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10	Mailing List Patch Vendor Advisory
12	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10	Mailing List Patch Vendor Advisory
13	http://www.openwall.com/lists/oss-security/2012/03/07/3	Exploit Mailing List Patch Third Party Advisory
14	http://www.openwall.com/lists/oss-security/2012/03/07/3	Exploit Mailing List Patch Third Party Advisory
15	https://bugzilla.redhat.com/show_bug.cgi?id=800813	Exploit Issue Tracking Patch Third Party Advisory
16	https://bugzilla.redhat.com/show_bug.cgi?id=800813	Exploit Issue Tracking Patch Third Party Advisory
17	https://exchange.xforce.ibmcloud.com/vulnerabilities/73711	Third Party Advisory VDB Entry
18	https://exchange.xforce.ibmcloud.com/vulnerabilities/73711	Third Party Advisory VDB Entry
19	https://github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986f	Exploit Patch Third Party Advisory
20	https://github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986f	Exploit Patch Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-476	NULL ポインタデリファレンス	https://cwe.mitre.org/data/definitions/476.html