Updated sendmail packages are now available to fix a denial of service
This update has been rated as having important security impact by the Red
Hat Security Response Team.
[Updated 27 June 2006]
The sendmail-docs packages for CentOS Linux 3 have been updated
to the correct version and release.
Sendmail is a Mail Transport Agent (MTA) used to send mail between machines.
A flaw in the handling of multi-part MIME messages was discovered in
Sendmail. A remote attacker could create a carefully crafted message that
could crash the sendmail process during delivery (CVE-2006-1173). By
default on CentOS Linux, Sendmail is configured to only accept
connections from the local host. Therefore, only users who have configured
Sendmail to listen to remote hosts would be remotely vulnerable to this issue.
Users of Sendmail are advised to upgrade to these erratum packages, which
contain a backported patch from the Sendmail team to correct this issue.