NVD Vulnerability Detail

CVE-2014-3940

Summary	The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.
Publication Date	June 6, 2014, 2:55 a.m.
Registration Date	Jan. 26, 2021, 3:11 p.m.
Last Update	Nov. 21, 2024, 11:09 a.m.

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
cpe:2.3:o:redhat:enterprise_mrg:2.0:::::::*

Related information, measures and tools

No	URL	refsource	タグ
1	http://rhn.redhat.com/errata/RHSA-2015-0290.html
2	http://rhn.redhat.com/errata/RHSA-2015-0290.html
3	http://rhn.redhat.com/errata/RHSA-2015-1272.html
4	http://rhn.redhat.com/errata/RHSA-2015-1272.html
5	http://secunia.com/advisories/59011
6	http://secunia.com/advisories/59011
7	http://secunia.com/advisories/61310
8	http://secunia.com/advisories/61310
9	http://www.openwall.com/lists/oss-security/2014/06/02/5
10	http://www.openwall.com/lists/oss-security/2014/06/02/5
11	http://www.securityfocus.com/bid/67786
12	http://www.securityfocus.com/bid/67786
13	https://bugzilla.redhat.com/show_bug.cgi?id=1104097
14	https://bugzilla.redhat.com/show_bug.cgi?id=1104097
15	https://lkml.org/lkml/2014/3/18/784
16	https://lkml.org/lkml/2014/3/18/784
17	https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html
18	https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-362	競合状態	https://cwe.mitre.org/data/definitions/362.html

JVN Vulnerability Information

Linux Kernel におけるサービス運用妨害 (DoS) の脆弱性

Title	Linux Kernel におけるサービス運用妨害 (DoS) の脆弱性
Summary	Linux Kernel は、hugetlb エントリの存在を適切に考慮しないため、サービス運用妨害 (メモリ破損またはシステムクラッシュ) 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、特定のメモリ領域にアクセスされることで、サービス運用妨害 (メモリ破損またはシステムクラッシュ) 状態にされる可能性があります。
Solution	ベンダ情報および参考情報を参照して適切な対策を実施してください。
Publication Date	March 18, 2014, midnight
Registration Date	June 9, 2014, 6:34 p.m.
Last Update	May 12, 2015, 5:29 p.m.

Affected System

レッドハット

Red Hat Enterprise Linux 6

Red Hat Enterprise MRG 2.0

Linux

Linux Kernel 3.14.5 まで

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-2014-3940	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3940
National Vulnerability Database (NVD)
2	CVE-2014-3940	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-3940

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

ベンダー情報

No	Name	URL
Linux Kernel
1	Linux Kernel Archives	http://www.kernel.org
LKML.ORG
2	[PATCH RESEND -mm 1/2] mm: add !pte_present() check on existing hugetlb_entry callbacks	https://lkml.org/lkml/2014/3/18/784
Red Hat Bugzilla
3	Bug 1104097	https://bugzilla.redhat.com/show_bug.cgi?id=1104097
Red Hat Security Advisory
4	RHSA-2015:0290	http://rhn.redhat.com/errata/RHSA-2015-0290.html
Security Advisory
5	sol15685: Linux kernel vulnerabilities CVE-2014-3940 and CVE-2014-4027	https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html

Change Log

No	Changed Details	Date of change
0	[2014年06月09日] 掲載 [2014年11月26日] ベンダ情報：F5 Networks (sol15685: Linux kernel vulnerabilities CVE-2014-3940 and CVE-2014-4027) を追加 [2015年05月12日] ベンダ情報：レッドハット (RHSA-2015:0290) を追加	Feb. 17, 2018, 10:37 a.m.