certfr_avis - certa-2006-avi-378

CERTA-2006-AVI-378

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité présente dans Sendmail peut être exploitée par un utilisateur mal intentionné à distance pour réaliser un déni de service.

Description

La vulnérabilité est présente dans le traitement des en-têtes des messages. Un utilisateur mal intentionné peut, via un message malveillant ayant un en-tête assez long, réaliser un déni de service.

A ce jour, des programmes malveillants exploitant cette vulnérabilité sont utilisés sur Internet. Il est donc recommandé de mettre à jour rapidement cette application.

Solution

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

Sendmail versions 8.x antérieures à la version 8.13.8.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2006-4434 (GCVE-0-2006-4434)

Vulnerability from cvelistv5 – Published: 2006-08-29 00:00 – Updated: 2024-08-07 19:06

Summary

Use-after-free vulnerability in Sendmail before 8.13.8 allows remote attackers to cause a denial of service (crash) via a long "header line", which causes a previously freed variable to be referenced. NOTE: the original developer has disputed the severity of this issue, saying "The only denial of service that is possible here is to fill up the disk with core dumps if the OS actually generates different core dumps (which is unlikely)... the bug is in the shutdown code (finis()) which leads directly to exit(3), i.e., the process would terminate anyway, no mail delivery or receiption is affected."

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://www.openbsd.org/errata.html#sendmail3	vendor-advisoryx_refsource_OPENBSD
	http://www.attrition.org/pipermail/vim/2006-Augus…	mailing-listx_refsource_VIM
	http://securitytracker.com/id?1016753	vdb-entryx_refsource_SECTRACK
	http://secunia.com/advisories/21637	third-party-advisoryx_refsource_SECUNIA
	http://www.vupen.com/english/advisories/2006/3994	vdb-entryx_refsource_VUPEN
	http://www.osvdb.org/28193	vdb-entryx_refsource_OSVDB
	http://secunia.com/advisories/21749	third-party-advisoryx_refsource_SECUNIA
	http://secunia.com/advisories/21700	third-party-advisoryx_refsource_SECUNIA
	http://www.debian.org/security/2006/dsa-1164	vendor-advisoryx_refsource_DEBIAN
	http://secunia.com/advisories/21641	third-party-advisoryx_refsource_SECUNIA
	http://www.sendmail.org/releases/8.13.8.html	x_refsource_CONFIRM
	http://www.vupen.com/english/advisories/2006/3393	vdb-entryx_refsource_VUPEN
	http://www.mandriva.com/security/advisories?name=…	vendor-advisoryx_refsource_MANDRIVA
	http://www.securityfocus.com/bid/19714	vdb-entryx_refsource_BID
	http://www.novell.com/linux/security/advisories/2…	vendor-advisoryx_refsource_SUSE
	http://sunsolve.sun.com/search/document.do?assetk…	vendor-advisoryx_refsource_SUNALERT
	http://secunia.com/advisories/22369	third-party-advisoryx_refsource_SECUNIA
	http://www.openbsd.org/errata38.html#sendmail3	vendor-advisoryx_refsource_OPENBSD
	http://secunia.com/advisories/21696	third-party-advisoryx_refsource_SECUNIA

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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