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Secunia Security Advisory 15779

Secunia Security Advisory 15779
Posted Jun 15, 2006
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in Sendmail, which can be exploited by malicious people to cause a DoS (Denial of Service).

tags | advisory, denial of service
MD5 | d85a02cfa2295e708eef8b3fbef6fc29

Secunia Security Advisory 15779

Change Mirror Download


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Want to join the Secunia Security Team?

Secunia offers a position as a security specialist, where your daily
work involves reverse engineering of software and exploit code,
auditing of source code, and analysis of vulnerability reports.

http://secunia.com/secunia_security_specialist/

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TITLE:
Sendmail Multi-Part MIME Message Handling Denial of Service

SECUNIA ADVISORY ID:
SA15779

VERIFY ADVISORY:
http://secunia.com/advisories/15779/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

OPERATING SYSTEM:
Sendmail Sentrion 1.x
http://secunia.com/product/8865/

SOFTWARE:
Sendmail 8.x
http://secunia.com/product/145/
Sendmail Message Store/SAMS 1.x
http://secunia.com/product/1198/
Sendmail Message Store/SAMS 2.x
http://secunia.com/product/8869/
Sendmail Switch 2.x
http://secunia.com/product/1197/
Sendmail Switch 3.x
http://secunia.com/product/1196/
Intelligent Quarantine 3.x
http://secunia.com/product/8872/

DESCRIPTION:
A vulnerability has been reported in Sendmail, which can be exploited
by malicious people to cause a DoS (Denial of Service).

The vulnerability is cause due to an error in the termination of the
recursive "mime8to7()" function when performing MIME conversions.
This can be exploited to cause a certain sendmail process to crash
when it runs out of stack space while processing a deeply nested
malformed MIME message.

Successful exploitation causes the delivery of other queued messages
to fail or causes the generated core dump files to fill up available
disk space.

The vulnerability has been reported in version 8.13.6 and prior.

SOLUTION:
Update to version 8.13.7.

Users of the commercial products should see the patch matrix in the
vendor advisory for details.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Frank Sheiness.

ORIGINAL ADVISORY:
Sendmail.org:
http://www.sendmail.org/releases/8.13.7.html

Sendmail.com:
http://www.sendmail.com/security/advisories/SA-200605-01.txt.asc

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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