Vulnerability Assessment & Network Security Forums



If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200606-19] Sendmail: Denial of Service


Vulnerability Assessment Details

[GLSA-200606-19] Sendmail: Denial of Service

Vulnerability Assessment Summary
Sendmail: Denial of Service

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200606-19
(Sendmail: Denial of Service)


Frank Sheiness discovered that the mime8to7() function can recurse
endlessly during the decoding of multipart MIME messages until the
stack of the process is filled and the process crashes.

Impact

By sending specially crafted multipart MIME messages, a remote
attacker can cause a subprocess forked by Sendmail to crash. If
Sendmail is not set to use a randomized queue processing, the attack
will effectively halt the delivery of queued mails as well as the
malformed one, incoming mail delivered interactively is not affected.
Additionally, on systems where core dumps with an individual naming
scheme (like "core.pid") are enabled, a filesystem may fill up with
core dumps. Core dumps are disabled by default in Gentoo.

Workaround

The Sendmail 8.13.7 release information offers some workarounds, please
see the Reference below. Note that the issue has actually been fixed in
the 8.13.6-r1 ebuild.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1173
http://www.sendmail.org/releases/8.13.7.html


Solution:
All Sendmail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/sendmail-8.13.6-r1"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

Cables, Connectors

Dell R730 Dual E5-2660 v3 10C 2.6GHz 512GB 4x 480GB SSD H730 iDRAC 2.5in Rails
$10087.0
Dell R730 Dual E5-2660 v3 10C 2.6GHz 512GB 4x 480GB SSD H730 iDRAC 2.5in Rails pictureHP Renew DL360 G9 Single E5-2620 v3 6C 2.4GHz 128GB 8x 450GB SAS P440ar Rails
$4492.0
HP Renew DL360 G9 Single E5-2620 v3 6C 2.4GHz 128GB 8x 450GB SAS P440ar Rails pictureDell R720xd OEM Dual E5-2660 8C 2.2GHz 384GB 12x 1TB SAS 12 Bay 3.5in Rails RPS
$3606.0
Dell R720xd OEM Dual E5-2660 8C 2.2GHz 384GB 12x 1TB SAS 12 Bay 3.5in Rails RPS pictureDell R710 Dual L5520 QC 2.26GHz 192GB 2x 300GB 6G, 6x 600GB 6G H700 iDRAC Rails
$1676.0
Dell R710 Dual L5520 QC 2.26GHz 192GB 2x 300GB 6G, 6x 600GB 6G H700 iDRAC Rails picture


Discussions

No Discussions have been posted on this vulnerability.