NVD Vulnerability Detail

CVE-2011-4362

Summary	Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.
Publication Date	Dec. 25, 2011, 4:55 a.m.
Registration Date	Jan. 28, 2021, 4:39 p.m.
Last Update	Nov. 21, 2024, 10:32 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:lighttpd:lighttpd:1.5.0:::::::*
cpe:2.3:a:lighttpd:lighttpd::::::::	1.4.1			1.4.30

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:5.0:::::::*
cpe:2.3:o:debian:debian_linux:7.0:::::::*
cpe:2.3:o:debian:debian_linux:6.0:::::::*

Related information, measures and tools

No	URL	タグ
1	http://archives.neohapsis.com/archives/bugtraq/2011-12/0167.html	Broken Link
2	http://blog.pi3.com.pl/?p=277	Exploit Third Party Advisory
3	http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt	Exploit Patch Vendor Advisory
4	http://jvn.jp/en/jp/JVN37417423/index.html	Third Party Advisory
5	http://redmine.lighttpd.net/issues/2370	Exploit Patch Vendor Advisory
6	http://secunia.com/advisories/47260	Third Party Advisory
7	http://www.debian.org/security/2011/dsa-2368	Third Party Advisory
8	http://www.exploit-db.com/exploits/18295	Exploit Third Party Advisory VDB Entry
9	http://www.openwall.com/lists/oss-security/2011/11/29/13	Exploit Mailing List Patch Third Party Advisory
10	http://www.openwall.com/lists/oss-security/2011/11/29/8	Exploit Mailing List Patch Third Party Advisory
11	http://www.securitytracker.com/id?1026359	Third Party Advisory VDB Entry
12	https://bugzilla.redhat.com/show_bug.cgi?id=758624	Issue Tracking Third Party Advisory
13	https://exchange.xforce.ibmcloud.com/vulnerabilities/71536	Third Party Advisory VDB Entry
14	http://archives.neohapsis.com/archives/bugtraq/2011-12/0167.html	Broken Link
15	https://exchange.xforce.ibmcloud.com/vulnerabilities/71536	Third Party Advisory VDB Entry
16	https://bugzilla.redhat.com/show_bug.cgi?id=758624	Issue Tracking Third Party Advisory
17	http://www.securitytracker.com/id?1026359	Third Party Advisory VDB Entry
18	http://www.openwall.com/lists/oss-security/2011/11/29/8	Exploit Mailing List Patch Third Party Advisory
19	http://www.openwall.com/lists/oss-security/2011/11/29/13	Exploit Mailing List Patch Third Party Advisory
20	http://www.exploit-db.com/exploits/18295	Exploit Third Party Advisory VDB Entry
21	http://www.debian.org/security/2011/dsa-2368	Third Party Advisory
22	http://secunia.com/advisories/47260	Third Party Advisory
23	http://redmine.lighttpd.net/issues/2370	Exploit Patch Vendor Advisory
24	http://jvn.jp/en/jp/JVN37417423/index.html	Third Party Advisory
25	http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt	Exploit Patch Vendor Advisory
26	http://blog.pi3.com.pl/?p=277	Exploit Third Party Advisory

Common Vulnerabilities List

JVN Vulnerability Information

lighttpd の base64_decode 関数における整数符号エラーの脆弱性

Title	lighttpd の base64_decode 関数における整数符号エラーの脆弱性
Summary	lighttpd の HTTP 認証機能 (http_auth.c) 内の base64_decode 関数には、整数符号エラーの脆弱性が存在します。
Possible impacts	第三者により、負のインデックスと共に領域外のメモリー参照を誘発する、巧妙に細工された base64 形式の入力を介して、サービス運用妨害 (セグメンテーション違反) 状態にされる可能性があります。
Solution	ベンダから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	Nov. 29, 2011, midnight
Registration Date	Dec. 28, 2011, 3:31 p.m.
Last Update	April 20, 2012, 3:28 p.m.

Affected System

LIGHTTPD

lighttpd 1.4.30 未満の 1.4

lighttpd SVN revision 2806 未満の 1.5

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-2011-4362	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4362
National Vulnerability Database (NVD)
2	CVE-2011-4362	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-4362
SECURITY BLOG
3	CVE-2011-4362 Denial of Service (DoS) vulnerability in lighttpd	https://blogs.oracle.com/sunsecurity/entry/cve_2011_4362_denial_of

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-189	https://jvndb.jvn.jp/ja/cwe/CWE-189.html

ベンダー情報

No	Name	URL
Lighttpd
1	lighttpd_sa_2011_01	http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt
Redmine
2	Bug #2370	http://redmine.lighttpd.net/issues/2370

Change Log

No	Changed Details	Date of change
0	[2011年12月28日] 掲載 [2012年04月20日] ベンダ情報：オラクル (CVE-2011-4362 Denial of Service (DoS) vulnerability in lighttpd) を追加	Feb. 17, 2018, 10:37 a.m.