certfr_avis - certa-2011-avi-669

CERTA-2011-AVI-669

Vulnerability from certfr_avis

Une vulnérabilité dans Lighttpd permet à un utilisateur malveillant de provoquer un déni de service à distance.

Description

Un défaut de typage de variable dans le programme du décodeur base64 conduit à utiliser une valeur négative comme indice de tableau en langage C. Cette erreur permet à un utilisateur non authentifié de provoquer un déni de service à distance au moyen d'une requête HTTP.

Solution

La révision 2806 de la version 1.4.30 et la version 1.5 de Lighttpd corrigent ce problème.

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Lighttpd, version 1.4.x.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2011-4362 (GCVE-0-2011-4362)

Vulnerability from cvelistv5

Published

2011-12-24 19:00

Modified

2024-08-07 00:09

Severity ?

CWE

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.

References

URL

Tags

	http://secunia.com/advisories/47260	third-party-advisory, x_refsource_SECUNIA
	http://archives.neohapsis.com/archives/bugtraq/2011-12/0167.html	mailing-list, x_refsource_BUGTRAQ
	http://www.openwall.com/lists/oss-security/2011/11/29/8	mailing-list, x_refsource_MLIST
	https://bugzilla.redhat.com/show_bug.cgi?id=758624	x_refsource_CONFIRM
	http://www.debian.org/security/2011/dsa-2368	vendor-advisory, x_refsource_DEBIAN
	http://www.exploit-db.com/exploits/18295	exploit, x_refsource_EXPLOIT-DB
	http://blog.pi3.com.pl/?p=277	x_refsource_MISC
	http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2011/11/29/13	mailing-list, x_refsource_MLIST
	http://www.securitytracker.com/id?1026359	vdb-entry, x_refsource_SECTRACK
	https://exchange.xforce.ibmcloud.com/vulnerabilities/71536	vdb-entry, x_refsource_XF
	http://redmine.lighttpd.net/issues/2370	x_refsource_CONFIRM
	http://jvn.jp/en/jp/JVN37417423/index.html	third-party-advisory, x_refsource_JVN

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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