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

HP PROLIANT DL585 G7 SERVER FOUR AMD 6238 2.60GHZ 64GB 4 X 1TB SAS
$3559.0
HP PROLIANT DL585 G7 SERVER FOUR AMD 6238 2.60GHZ 64GB 4 X 1TB SAS pictureDELL POWEREDGE R820 SERVER 8B TWO E5-4603 2.0GHZ 192GB 2 X 1.8TB 10K SAS H710
$4219.0
DELL POWEREDGE R820 SERVER 8B TWO E5-4603 2.0GHZ 192GB 2 X 1.8TB 10K SAS H710 pictureHP PROLIANT DL585 G7 SERVER FOUR AMD 6274 2.20GHZ 1024GB 6 X 300GB 10K SAS
$9009.0
HP PROLIANT DL585 G7 SERVER FOUR AMD 6274 2.20GHZ 1024GB 6 X 300GB 10K SAS pictureDELL POWEREDGE R630 10 BAY TWO E5-2630V4 2.2GHZ 256GB 10 X 1TB SAS H330
$7759.0
DELL POWEREDGE R630 10 BAY TWO E5-2630V4 2.2GHZ 256GB 10 X 1TB SAS H330 picture


Discussions

No Discussions have been posted on this vulnerability.