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JVN脆弱性詳細

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

Title	Linux kernel の blk_rq_map_user_iov 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary	Linux kernel の block/blk-map.c 内にある blk_rq_map_user_iov 関数は、unaligned マップに関する処理に不備があるため、サービス運用妨害 (DoS) 状態となる脆弱性が存在します。本脆弱性は CVE-2010-4163 の修正が不完全だったことによる脆弱性です。
Possible impacts	ローカルユーザにより、SCSI デバイスのデバイス ioctl 内にある zero-length I/O リクエストを介して、サービス運用妨害 (DoS) 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	Jan. 3, 2011, midnight
Registration Date	Feb. 1, 2011, 2:02 p.m.
Last Update	March 29, 2011, 2:27 p.m.

CVSS2.0 : 警告
Score	4.7
Vector	AV:L/AC:M/Au:N/C:N/I:N/A:C

Affected System

レッドハット

Red Hat Enterprise Linux 5

Red Hat Enterprise Linux Desktop 6

Red Hat Enterprise Linux HPC Node 6

Red Hat Enterprise Linux Server 6

Red Hat Enterprise Linux Workstation 6

Linux

Linux Kernel 2.6.37 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-2010-4668	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4668
National Vulnerability Database (NVD)
2	CVE-2010-4668	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-4668

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-399	https://jvndb.jvn.jp/ja/cwe/CWE-399.html

ベンダー情報

No	Name	URL
Linux Kernel
1	ChangeLog-2.6.37	http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
2	Linux Kernel Archives	http://www.kernel.org
Red Hat Security Advisory
3	RHSA-2011:0007	https://rhn.redhat.com/errata/RHSA-2011-0007.html
4	RHSA-2011:0330	https://rhn.redhat.com/errata/RHSA-2011-0330.html

その他

No	Name	URL
ISS X-Force Database
1	64496	http://xforce.iss.net/xforce/xfdb/64496
SecurityFocus
2	45660	http://www.securityfocus.com/bid/45660

Change Log

No	Changed Details	Date of change
0	[2011年02月01日] 掲載 [2011年03月29日] 影響を受けるシステム：レッドハット (RHSA-2011:0330) の情報を追加ベンダ情報：レッドハット (RHSA-2011:0330) を追加	Feb. 17, 2018, 10:37 a.m.

NVD Vulnerability Information

CVE-2010-4668

Summary	The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 2.6.37-rc7 allows local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device, related to an unaligned map. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4163.
Publication Date	Jan. 4, 2011, 5 a.m.
Registration Date	Jan. 29, 2021, 11:09 a.m.
Last Update	Nov. 21, 2024, 10:21 a.m.

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:o:linux:linux_kernel:2.6.37:rc4::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc2::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc6::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc5::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc1::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc3::::::
cpe:2.3:o:linux:linux_kernel::::::::				2.6.37
cpe:2.3:o:linux:linux_kernel:2.6.37:-::::::

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=5478755616ae2ef1ce144dded589b62b2a50d575
2	http://lkml.org/lkml/2010/11/29/68	Mailing List Patch Third Party Advisory
3	http://lkml.org/lkml/2010/11/29/70	Mailing List Third Party Advisory
4	http://openwall.com/lists/oss-security/2010/11/29/1	Mailing List Patch Third Party Advisory
5	http://openwall.com/lists/oss-security/2010/11/30/4	Mailing List Patch Third Party Advisory
6	http://openwall.com/lists/oss-security/2010/11/30/7	Mailing List Patch Third Party Advisory
7	http://secunia.com/advisories/42890	Third Party Advisory Vendor Advisory
8	http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc7	Broken Link
9	http://www.redhat.com/support/errata/RHSA-2011-0007.html	Third Party Advisory
10	http://www.securityfocus.com/bid/45660	Third Party Advisory VDB Entry
11	https://exchange.xforce.ibmcloud.com/vulnerabilities/64496	Third Party Advisory VDB Entry
12	https://patchwork.kernel.org/patch/363282/	Patch Third Party Advisory
13	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5478755616ae2ef1ce144dded589b62b2a50d575
14	https://patchwork.kernel.org/patch/363282/	Patch Third Party Advisory
15	https://exchange.xforce.ibmcloud.com/vulnerabilities/64496	Third Party Advisory VDB Entry
16	http://www.securityfocus.com/bid/45660	Third Party Advisory VDB Entry
17	http://www.redhat.com/support/errata/RHSA-2011-0007.html	Third Party Advisory
18	http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc7	Broken Link
19	http://secunia.com/advisories/42890	Third Party Advisory Vendor Advisory
20	http://openwall.com/lists/oss-security/2010/11/30/7	Mailing List Patch Third Party Advisory
21	http://openwall.com/lists/oss-security/2010/11/30/4	Mailing List Patch Third Party Advisory
22	http://openwall.com/lists/oss-security/2010/11/29/1	Mailing List Patch Third Party Advisory
23	http://lkml.org/lkml/2010/11/29/70	Mailing List Third Party Advisory
24	http://lkml.org/lkml/2010/11/29/68	Mailing List Patch Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-400	リソースの枯渇	https://cwe.mitre.org/data/definitions/400.html

Configuration1	or higher	or less	more than	less than
cpe:2.3:o:linux:linux_kernel:2.6.37:rc4::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc2::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc6::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc5::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc1::::::
cpe:2.3:o:linux:linux_kernel:2.6.37:rc3::::::
cpe:2.3:o:linux:linux_kernel::::::::				2.6.37
cpe:2.3:o:linux:linux_kernel:2.6.37:-::::::