NVD Vulnerability Detail

CVE-2014-9914

Summary	Race condition in the ip4_datagram_release_cb function in net/ipv4/datagram.c in the Linux kernel before 3.15.2 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect expectations about locking during multithreaded access to internal data structures for IPv4 UDP sockets.
Publication Date	Feb. 7, 2017, 4:59 p.m.
Registration Date	Jan. 26, 2021, 3:23 p.m.
Last Update	Nov. 21, 2024, 11:21 a.m.

Affected software configurations

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:google:android::::::::			7.1.1

Related information, measures and tools

No	URL	タグ
1	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9709674e68646cee5a24e3000b3558d25412203a	Issue Tracking Patch Third Party Advisory
2	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9709674e68646cee5a24e3000b3558d25412203a	Issue Tracking Patch Third Party Advisory
3	http://source.android.com/security/bulletin/2017-02-01.html	Third Party Advisory
4	http://source.android.com/security/bulletin/2017-02-01.html	Third Party Advisory
5	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2	Release Notes Vendor Advisory
6	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2	Release Notes Vendor Advisory
7	http://www.securityfocus.com/bid/96100	Third Party Advisory VDB Entry
8	http://www.securityfocus.com/bid/96100	Third Party Advisory VDB Entry
9	http://www.securitytracker.com/id/1037798	Third Party Advisory VDB Entry
10	http://www.securitytracker.com/id/1037798	Third Party Advisory VDB Entry
11	https://github.com/torvalds/linux/commit/9709674e68646cee5a24e3000b3558d25412203a	Issue Tracking Patch Third Party Advisory
12	https://github.com/torvalds/linux/commit/9709674e68646cee5a24e3000b3558d25412203a	Issue Tracking Patch Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-362	競合状態	https://cwe.mitre.org/data/definitions/362.html
2	CWE-416	解放済みメモリの使用	https://cwe.mitre.org/data/definitions/416.html

JVN Vulnerability Information

Linux Kernel の net/ipv4/datagram.c の ip4_datagram_release_cb 関数における権限を取得される脆弱性

Title	Linux Kernel の net/ipv4/datagram.c の ip4_datagram_release_cb 関数における権限を取得される脆弱性
Summary	Linux Kernel の net/ipv4/datagram.c の ip4_datagram_release_cb 関数には、競合状態により、権限を取得される、またはサービス運用妨害 (解放済みメモリの使用 (use-after-free)) 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、IPv4 UDP ソケットの内部データ構造へのマルチスレッドアクセス中に、ロッキングに対する誤った予想を利用されることで、権限を取得される、またはサービス運用妨害 (解放済みメモリの使用 (use-after-free)) 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	Feb. 17, 2017, 11:45 a.m.
Last Update	Feb. 17, 2017, 11:45 a.m.

Affected System

Google

Android

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-2014-9914	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9914
National Vulnerability Database (NVD)
2	CVE-2014-9914	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9914

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-362	https://jvndb.jvn.jp/ja/cwe/CWE-362.html
2	CWE-416	https://cwe.mitre.org/data/definitions/416.html

ベンダー情報

No	Name	URL
Android Open Source Project
1	Android Security Bulletin-February 2017	http://source.android.com/security/bulletin/2017-02-01.html
ChangeLog
2	ChangeLog-3.15.2	https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
GitHub
3	ipv4: fix a race in ip4_datagram_release_cb()	https://github.com/torvalds/linux/commit/9709674e68646cee5a24e3000b3558d25412203a
Linux Kernel
4	Linux Kernel Archives	http://www.kernel.org
Linux kernel source tree
5	ipv4: fix a race in ip4_datagram_release_cb()	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9709674e68646cee5a24e3000b3558d25412203a

Change Log

No	Changed Details	Date of change
0	[2017年02月17日] 掲載	Feb. 17, 2018, 10:37 a.m.