NVD Vulnerability Detail

CVE-2011-4838

Summary	JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.
Publication Date	Dec. 30, 2011, 10:55 a.m.
Registration Date	Jan. 28, 2021, 4:39 p.m.
Last Update	Nov. 21, 2024, 10:33 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:jruby:jruby::::::::					1.6.5.1

Related information, measures and tools

No	URL	タグ
1	http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html	Broken Link
2	http://jruby.org/2011/12/27/jruby-1-6-5-1.html	Vendor Advisory
3	http://rhn.redhat.com/errata/RHSA-2012-1232.html	Broken Link
4	http://secunia.com/advisories/47407	Third Party Advisory
5	http://secunia.com/advisories/50084	Third Party Advisory
6	http://security.gentoo.org/glsa/glsa-201207-06.xml	Third Party Advisory
7	http://www.kb.cert.org/vuls/id/903934	Third Party Advisory US Government Resource
8	http://www.nruns.com/_downloads/advisory28122011.pdf	Third Party Advisory
9	http://www.ocert.org/advisories/ocert-2011-003.html	Third Party Advisory
10	https://exchange.xforce.ibmcloud.com/vulnerabilities/72019	Third Party Advisory VDB Entry
11	http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html	Broken Link
12	https://exchange.xforce.ibmcloud.com/vulnerabilities/72019	Third Party Advisory VDB Entry
13	http://www.ocert.org/advisories/ocert-2011-003.html	Third Party Advisory
14	http://www.nruns.com/_downloads/advisory28122011.pdf	Third Party Advisory
15	http://www.kb.cert.org/vuls/id/903934	Third Party Advisory US Government Resource
16	http://security.gentoo.org/glsa/glsa-201207-06.xml	Third Party Advisory
17	http://secunia.com/advisories/50084	Third Party Advisory
18	http://secunia.com/advisories/47407	Third Party Advisory
19	http://rhn.redhat.com/errata/RHSA-2012-1232.html	Broken Link
20	http://jruby.org/2011/12/27/jruby-1-6-5-1.html	Vendor 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

JVN Vulnerability Information

JRuby におけるサービス運用妨害 (CPU 資源の消費) の脆弱性

Title	JRuby におけるサービス運用妨害 (CPU 資源の消費) の脆弱性
Summary	JRuby は、ハッシュ衝突を想定した制限を行わずにフォームパラメータのハッシュ値を算出するため、サービス運用妨害 (CPU 資源の消費) 状態となる脆弱性が存在します。
Possible impacts	攻撃者により、ハッシュテーブルを持つアプリケーションに対する巧妙に細工された入力を介して、サービス運用妨害 (CPU 資源の消費) 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	Dec. 28, 2011, midnight
Registration Date	Jan. 4, 2012, 4:43 p.m.
Last Update	Jan. 4, 2012, 4:43 p.m.

Affected System

JRuby

JRuby 1.6.5.1 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-2011-4838	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4838
National Vulnerability Database (NVD)
2	CVE-2011-4838	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-4838

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-20	https://jvndb.jvn.jp/ja/cwe/CWE-20.html

ベンダー情報

No	Name	URL
JRuby
1	Top Page	http://jruby.org/

その他

No	Name	URL
IPA 緊急対策情報
1	20120106-web	http://www.ipa.go.jp/security/ciadr/vul/20120106-web.html
JVN
2	JVNVU#903934	http://jvn.jp/cert/JVNVU903934
US-CERT Vulnerability Note
3	VU#903934	http://www.kb.cert.org/vuls/id/903934

Change Log

No	Changed Details	Date of change
0	[2012年01月04日] 掲載	Feb. 17, 2018, 10:37 a.m.