Alerts This Week
Warning Icon 1 905
Alerts This Week
Warning Icon 1 905

Gentoo: GLSA-201206-30 Normal: Sendmail Null Spoofing Threat

gentoo
Calendar Grey June 25, 2012
Dist Gentoo Esm H88
A vulnerability in X.509 NULL handling in sendmail could enable remote actors to execute man-in-the-middle exploits on Gentoo systems.
An error in the hostname matching in sendmail might enable remote attackers to conduct man-in-the-middle attacks.

Summary

A vulnerability has been discovered in sendmail. Please review the CVE identifier referenced below for details.

Topics%20covered

Topics Covered

security advisory Gentoo update sendmail man-in-the-middle normal NULL spoofing

Resolution

All sendmail users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=mail-mta/sendmail-8.14.4"

References

[ 1 ] CVE-2009-4565 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4565

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201206-30
style>.gentoo_availability{display:block;}

Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: sendmail: X.509 NULL spoofing vulnerability
Date: June 25, 2012
Bugs: #299120
ID: 201206-30

Topics%20covered

Topics Covered

security advisory Gentoo update sendmail man-in-the-middle normal NULL spoofing

Synopsis

An error in the hostname matching in sendmail might enable remote attackers to conduct man-in-the-middle attacks.

Background

sendmail is a widely-used Mail Transport Agent (MTA).

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 mail-mta/sendmail < 8.14.4 >= 8.14.4

Impact

===== A remote attacker might employ a specially crafted certificate to conduct man-in-the-middle attacks on SSL connections made using sendmail.

Workaround

There is no known workaround at this time.

Your message here