NVD Vulnerability Detail

CVE-2014-4655

Summary	The snd_ctl_elem_add function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not properly maintain the user_ctl_count value, which allows local users to cause a denial of service (integer overflow and limit bypass) by leveraging /dev/snd/controlCX access for a large number of SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl calls.
Publication Date	July 3, 2014, 1:22 p.m.
Registration Date	Jan. 26, 2021, 3:13 p.m.
Last Update	Nov. 21, 2024, 11:10 a.m.

CVSS2.0 : MEDIUM
Score	4.9
Vector	AV:L/AC:L/Au:N/C:N/I:N/A:C
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	低
攻撃前の認証要否(Au)	不要
機密性への影響(C)	なし
完全性への影響(I)	なし
可用性への影響(A)	高
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:o:linux:linux_kernel::::::::					3.15.2

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:suse:linux_enterprise_server:10:sp4:::ltss:::*

Configuration3		or higher	or less	more than	less than
cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::

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=82262a46627bebb0febcc26664746c25cef08563
2	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=82262a46627bebb0febcc26664746c25cef08563
3	http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html	Mailing List Third Party Advisory
5	http://rhn.redhat.com/errata/RHSA-2014-1083.html	Third Party Advisory
6	http://rhn.redhat.com/errata/RHSA-2014-1083.html	Third Party Advisory
7	http://secunia.com/advisories/59434	Third Party Advisory
8	http://secunia.com/advisories/59434	Third Party Advisory
9	http://secunia.com/advisories/59777	Third Party Advisory
10	http://secunia.com/advisories/59777	Third Party Advisory
11	http://secunia.com/advisories/60545	Third Party Advisory
12	http://secunia.com/advisories/60545	Third Party Advisory
13	http://secunia.com/advisories/60564	Third Party Advisory
14	http://secunia.com/advisories/60564	Third Party Advisory
15	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2	Release Notes Vendor Advisory
16	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2	Release Notes Vendor Advisory
17	http://www.openwall.com/lists/oss-security/2014/06/26/6	Mailing List Third Party Advisory
18	http://www.openwall.com/lists/oss-security/2014/06/26/6	Mailing List Third Party Advisory
19	http://www.securityfocus.com/bid/68162	Third Party Advisory VDB Entry
20	http://www.securityfocus.com/bid/68162	Third Party Advisory VDB Entry
21	http://www.securitytracker.com/id/1036763	Third Party Advisory VDB Entry
22	http://www.securitytracker.com/id/1036763	Third Party Advisory VDB Entry
23	http://www.ubuntu.com/usn/USN-2334-1	Third Party Advisory
24	http://www.ubuntu.com/usn/USN-2334-1	Third Party Advisory
25	http://www.ubuntu.com/usn/USN-2335-1	Third Party Advisory
26	http://www.ubuntu.com/usn/USN-2335-1	Third Party Advisory
27	https://bugzilla.redhat.com/show_bug.cgi?id=1113445	Issue Tracking Third Party Advisory
28	https://bugzilla.redhat.com/show_bug.cgi?id=1113445	Issue Tracking Third Party Advisory
29	https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563	Patch Third Party Advisory
30	https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563	Patch Third Party Advisory

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

Linux Kernel の ALSA 制御の実装の sound/core/control.c 内の snd_ctl_elem_add 関数におけるサービス運用妨害 (DoS) の脆弱性

Title	Linux Kernel の ALSA 制御の実装の sound/core/control.c 内の snd_ctl_elem_add 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary	Linux Kernel の ALSA 制御の実装の sound/core/control.c 内の snd_ctl_elem_add 関数は、user_ctl_count 値を適切に管理しないため、サービス運用妨害 (整数オーバーフローおよび制限の回避) 状態にされる脆弱性が存在します。
Possible impacts	ローカルユーザにより、大量の SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl コールの /dev/snd/controlCX アクセスを利用されることで、サービス運用妨害 (整数オーバーフローおよび制限の回避) 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	June 26, 2014, midnight
Registration Date	July 7, 2014, 4:51 p.m.
Last Update	July 7, 2014, 4:51 p.m.

Affected System

Linux

Linux Kernel 3.15.2 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-2014-4655	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4655
National Vulnerability Database (NVD)
2	CVE-2014-4655	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-4655

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-189	https://jvndb.jvn.jp/ja/cwe/CWE-189.html

ベンダー情報

No	Name	URL
ChangeLog
1	ChangeLog-3.15.2	https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
GitHub
2	ALSA: control: Fix replacing user controls	https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563
Linux Kernel
3	Linux Kernel Archives	http://www.kernel.org
Linux kernel source tree
4	ALSA: control: Fix replacing user controls	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82262a46627bebb0febcc26664746c25cef08563
Red Hat Bugzilla
5	Bug 1113445	https://bugzilla.redhat.com/show_bug.cgi?id=1113445

Change Log

No	Changed Details	Date of change
0	[2014年07月07日] 掲載	Feb. 17, 2018, 10:37 a.m.