NVD Vulnerability Detail

CVE-2013-1821

Summary	lib/rexml/text.rb in the REXML parser in Ruby before 1.9.3-p392 allows remote attackers to cause a denial of service (memory consumption and crash) via crafted text nodes in an XML document, aka an XML Entity Expansion (XEE) attack.
Publication Date	April 10, 2013, 6:55 a.m.
Registration Date	Jan. 26, 2021, 3:37 p.m.
Last Update	Nov. 21, 2024, 10:50 a.m.

CVSS2.0 : MEDIUM
Score	5.0
Vector	AV:N/AC:L/Au:N/C:N/I:N/A:P
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃前の認証要否(Au)	不要
機密性への影響(C)	なし
完全性への影響(I)	なし
可用性への影響(A)	低
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:ruby-lang:ruby:1.9.3:p286::::::
cpe:2.3:a:ruby-lang:ruby:1.9.3:p383::::::
cpe:2.3:a:ruby-lang:ruby:1.9.2:::::::*
cpe:2.3:a:ruby-lang:ruby:1.9.1:::::::*
cpe:2.3:a:ruby-lang:ruby:1.9.3:p125::::::
cpe:2.3:a:ruby-lang:ruby:1.9.3:p194::::::
cpe:2.3:a:ruby-lang:ruby:1.9.3:::::::*
cpe:2.3:a:ruby-lang:ruby:1.9:::::::*
cpe:2.3:a:ruby-lang:ruby:1.9.3:p0::::::
cpe:2.3:a:ruby-lang:ruby::p385::::::*		1.9.3

Configuration2	or higher	or less	more than	less than
cpe:2.3:a:ruby-lang:ruby:2.0.0:::::::*
cpe:2.3:a:ruby-lang:ruby:2.0:::::::*
cpe:2.3:a:ruby-lang:ruby:2.0.0:rc1::::::
cpe:2.3:a:ruby-lang:ruby:2.0.0:rc2::::::

Related information, measures and tools

No	URL	タグ
1	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525
2	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525
3	http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00001.html
4	http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00001.html
5	http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html
6	http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html
7	http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html
8	http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html
9	http://lists.opensuse.org/opensuse-updates/2013-04/msg00036.html
10	http://lists.opensuse.org/opensuse-updates/2013-04/msg00036.html
11	http://rhn.redhat.com/errata/RHSA-2013-0611.html
12	http://rhn.redhat.com/errata/RHSA-2013-0611.html
13	http://rhn.redhat.com/errata/RHSA-2013-0612.html
14	http://rhn.redhat.com/errata/RHSA-2013-0612.html
15	http://rhn.redhat.com/errata/RHSA-2013-1028.html
16	http://rhn.redhat.com/errata/RHSA-2013-1028.html
17	http://rhn.redhat.com/errata/RHSA-2013-1147.html
18	http://rhn.redhat.com/errata/RHSA-2013-1147.html
19	http://secunia.com/advisories/52783	Vendor Advisory
20	http://secunia.com/advisories/52783	Vendor Advisory
21	http://secunia.com/advisories/52902	Vendor Advisory
22	http://secunia.com/advisories/52902	Vendor Advisory
23	http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=39384
24	http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=39384
25	http://www.debian.org/security/2013/dsa-2738
26	http://www.debian.org/security/2013/dsa-2738
27	http://www.debian.org/security/2013/dsa-2809
28	http://www.debian.org/security/2013/dsa-2809
29	http://www.mandriva.com/security/advisories?name=MDVSA-2013:124
30	http://www.mandriva.com/security/advisories?name=MDVSA-2013:124
31	http://www.openwall.com/lists/oss-security/2013/03/06/5
32	http://www.openwall.com/lists/oss-security/2013/03/06/5
33	http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
34	http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
35	http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/	Vendor Advisory
36	http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/	Vendor Advisory
37	http://www.securityfocus.com/bid/58141
38	http://www.securityfocus.com/bid/58141
39	http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.426862
40	http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.426862
41	http://www.ubuntu.com/usn/USN-1780-1
42	http://www.ubuntu.com/usn/USN-1780-1
43	https://bugzilla.redhat.com/show_bug.cgi?id=914716
44	https://bugzilla.redhat.com/show_bug.cgi?id=914716
45	https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092
46	https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-20	不適切な入力確認	https://cwe.mitre.org/data/definitions/20.html

JVN Vulnerability Information

Ruby の REXML パーサの lib/rexml/text.rb におけるサービス運用妨害 (DoS) の脆弱性

Title	Ruby の REXML パーサの lib/rexml/text.rb におけるサービス運用妨害 (DoS) の脆弱性
Summary	Ruby の REXML パーサの lib/rexml/text.rb には、サービス運用妨害 (メモリ消費およびクラッシュ) 状態となる脆弱性が存在します。
Possible impacts	第三者により、XML ドキュメント内の巧妙に細工されたテキストノードを介して、サービス運用妨害 (メモリ消費およびクラッシュ) 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	Feb. 22, 2013, midnight
Registration Date	April 11, 2013, 7:42 p.m.
Last Update	Aug. 31, 2015, 5:31 p.m.

Affected System

Ruby-lang.org

Ruby 1.9.3 patchlevel 392 およびそれ以前

Ruby 2.0.0 patchlevel 0 およびそれ以前

Ruby 開発版 (trunk) revision 39384 およびそれ以前

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-2013-1821	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1821
National Vulnerability Database (NVD)
2	CVE-2013-1821	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-1821

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
Debian Bug report logs
1	#702525 - ruby1.9.1: CVE-2013-1821: entity expansion DoS vulnerability in REXML	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525
opensuse-updates
2	openSUSE-SU-2013:0603	http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html
3	openSUSE-SU-2013:0614	http://lists.opensuse.org/opensuse-updates/2013-04/msg00036.html
Oracle Technology Network
4	Oracle Solaris Third Party Bulletin - July 2015	http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
Red Hat Bugzilla
5	Bug 914716	https://bugzilla.redhat.com/show_bug.cgi?id=914716
6	Bug 914726	https://bugzilla.redhat.com/show_bug.cgi?id=914726
Red Hat Security Advisory
7	RHSA-2013:0611	http://rhn.redhat.com/errata/RHSA-2013-0611.html
8	RHSA-2013:0612	http://rhn.redhat.com/errata/RHSA-2013-0612.html
9	RHSA-2013:1028	http://rhn.redhat.com/errata/RHSA-2013-1028.html
10	RHSA-2013:1147	http://rhn.redhat.com/errata/RHSA-2013-1147.html
11	RHSA-2013:1185	http://rhn.redhat.com/errata/RHSA-2013-1185.html
Ruby
12	Entity expansion DoS vulnerability in REXML (XML bomb, CVE-2013-1821)	http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/
13	REXML におけるエンティティ展開に伴うサービス不能攻撃について (CVE-2013-1821)	http://www.ruby-lang.org/ja/news/2013/02/22/rexml-dos-2013-02-22/
ruby-lang
14	Revision 39384	http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=39384
Ubuntu Security Notice
15	USN-1780-1	http://www.ubuntu.com/usn/USN-1780-1

その他

No	Name	URL
関連文書
1	MGASA-2013-0092	https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092

Change Log

No	Changed Details	Date of change
0	[2013年04月11日] 掲載 [2013年05月09日] ベンダ情報：レッドハット (RHSA-2013:0612) を追加 [2013年06月20日] ベンダ情報：openSUSE (openSUSE-SU-2013:0603) を追加ベンダ情報：openSUSE (openSUSE-SU-2013:0614) を追加 [2013年08月27日] ベンダ情報：レッドハット (RHSA-2013:1147) を追加 [2014年03月06日] ベンダ情報：レッドハット (Bug 914726) を追加ベンダ情報：レッドハット (RHSA-2013:1028) を追加ベンダ情報：レッドハット (RHSA-2013:1185) を追加参考情報：関連文書 (MGASA-2013-0092) を追加 [2015年08月31日] ベンダ情報：オラクル (Oracle Solaris Third Party Bulletin - July 2015) を追加	Feb. 17, 2018, 10:37 a.m.

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:ruby-lang:ruby:1.9.3:p286::::::
cpe:2.3:a:ruby-lang:ruby:1.9.3:p383::::::
cpe:2.3:a:ruby-lang:ruby:1.9.2:::::::*
cpe:2.3:a:ruby-lang:ruby:1.9.1:::::::*
cpe:2.3:a:ruby-lang:ruby:1.9.3:p125::::::
cpe:2.3:a:ruby-lang:ruby:1.9.3:p194::::::
cpe:2.3:a:ruby-lang:ruby:1.9.3:::::::*
cpe:2.3:a:ruby-lang:ruby:1.9:::::::*
cpe:2.3:a:ruby-lang:ruby:1.9.3:p0::::::
cpe:2.3:a:ruby-lang:ruby::p385::::::*		1.9.3