RHSA-2004:156 - Security Advisory
Security Advisory: Important
An updated mailman package that closes a DoS vulnerability in mailman
introduced by RHSA-2004:019 is now available.
Mailman is a mailing list manager.
On February 19 2004, Red Hat issued security erratum RHSA-2004:019 to
correct a DoS (Denial of Service) vulnerability where an attacker could
send a carefully-crafted message and cause mailman to crash.
Matthew Saltzman discovered a flaw in our original patch intended to
correct this vulnerability. This flaw can cause mailman to crash if it
receives an email destined for a list with an empty subject field. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0182 to this issue.
Users of Mailman are advised to upgrade to these updated packages, which
include an updated patch and are not vulnerable to this issue.
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.
If up2date fails to connect to Red Hat Network due to SSL
Certificate Errors, you need to install a version of the
up2date client with an updated certificate. The latest version of
up2date is available from the Red Hat FTP site and may also be
downloaded directly from the RHN website:
- Red Hat Enterprise Linux Server 2 ia64
- Red Hat Enterprise Linux Server 2 i386
- Red Hat Enterprise Linux Workstation 2 ia64
- BZ - 118669 - DoS: qrunner fails if no Subject field in message header