NVD Vulnerability Detail

CVE-2011-1951

Summary	lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consumption) via a message that does not match a regular expression.
Publication Date	July 12, 2011, 5:55 a.m.
Registration Date	Jan. 28, 2021, 4:38 p.m.
Last Update	Nov. 21, 2024, 10:27 a.m.

Affected software configurations

Related information, measures and tools

No	URL	タグ
1	http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff
2	http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html	Mailing List Third Party Advisory
3	http://secunia.com/advisories/45122	Third Party Advisory
4	http://www.openwall.com/lists/oss-security/2011/05/26/1	Mailing List Patch Third Party Advisory
5	http://www.securityfocus.com/bid/47800	Third Party Advisory VDB Entry
6	https://bugzilla.redhat.com/show_bug.cgi?id=709088	Issue Tracking Patch Third Party Advisory
7	http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff
8	https://bugzilla.redhat.com/show_bug.cgi?id=709088	Issue Tracking Patch Third Party Advisory
9	http://www.securityfocus.com/bid/47800	Third Party Advisory VDB Entry
10	http://www.openwall.com/lists/oss-security/2011/05/26/1	Mailing List Patch Third Party Advisory
11	http://secunia.com/advisories/45122	Third Party Advisory
12	http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html	Mailing List Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-399	リソース管理の問題	https://cwe.mitre.org/data/definitions/399.html

JVN Vulnerability Information

Balabit syslog-ng の lib/logmatcher.c におけるサービス運用妨害 (DoS) の脆弱性

Title	Balabit syslog-ng の lib/logmatcher.c におけるサービス運用妨害 (DoS) の脆弱性
Summary	Balabit syslog-ng の lib/logmatcher.c には、PCRE を使用しグローバルフラグをセットする際、サービス運用妨害 (メモリ消費) の脆弱性が存在します。
Possible impacts	第三者により、正規表現とマッチしないメッセージを介して、サービス運用妨害 (メモリ消費) 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	May 3, 2011, midnight
Registration Date	March 27, 2012, 6:43 p.m.
Last Update	March 27, 2012, 6:43 p.m.

Affected System

pcre.org

PCRE 8.12 およびその他のバージョン

balabit

syslog-ng 3.2.4 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-2011-1951	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1951
National Vulnerability Database (NVD)
2	CVE-2011-1951	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-1951

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
balabit
1	pcre: fixed a potential resource hogging infinite loop when an error occurs	http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git;a=commit;h=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff
PCRE
2	PCRE	http://www.pcre.org/

Change Log

No	Changed Details	Date of change
0	[2012年03月27日] 掲載	Feb. 17, 2018, 10:37 a.m.