GLSA 201206-30: sendmail: X.509 NULL spoofing vulnerability
| Severity: | normal |
| Title: | sendmail: X.509 NULL spoofing vulnerability |
| Date: | 06/25/2012 |
| Bugs: | |
| ID: | 201206-30 |
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).
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| mail-mta/sendmail | < 8.14.4 | >= 8.14.4 | All supported architectures |
Description
A vulnerability has been discovered in sendmail. Please review the CVE identifier referenced below for details.
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.
Resolution
All sendmail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/sendmail-8.14.4"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
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.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.