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AUSCERT External Security Bulletin Redistribution
ESB-2004.0614 -- RHSA-2004:451-01
Updated spamassassin package fixes denial of service issue
1 October 2004
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AusCERT Security Bulletin Summary
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Product: spamassassin
Publisher: Red Hat
Operating System: Red Hat Desktop version 3
Red Hat Enterprise Linux AS/ES/WS 3
Linux variants
UNIX variants
Impact: Denial of Service
Access: Remote/Unauthenticated
CVE Names: CAN-2004-0796
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Red Hat Security Advisory
Synopsis: Updated spamassassin package fixes denial of service issue
Advisory ID: RHSA-2004:451-01
Issue date: 2004-09-30
Updated on: 2004-09-30
Product: Red Hat Enterprise Linux
CVE Names: CAN-2004-0796
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1. Summary:
An updated spamassassin package that fixes a denial of service bug when
parsing malformed messages is now available.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
3. Problem description:
SpamAssassin provides a way to reduce unsolicited commercial email (SPAM)
from incoming email.
A denial of service bug has been found in SpamAssassin versions below 2.64.
A malicious attacker could construct a message in such a way that would
cause spamassassin to stop responding, potentially preventing the delivery
or filtering of email. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2004-0796 to this issue.
Users of SpamAssassin should update to these updated packages which contain
a backported patch and is not vulnerable to this issue.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:
up2date
For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:
http://www.redhat.com/docs/manuals/enterprise/
5. Bug IDs fixed (http://bugzilla.redhat.com/ for more info):
129337 - CAN-2004-0796 DOS attack open to certain malformed messages
6. RPMs required:
Red Hat Enterprise Linux AS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/spamassassin-2.55-3.2.src.rpm
dc61064510ef1814b033366f15838f7d spamassassin-2.55-3.2.src.rpm
i386:
52dea7b072ab36c717be6fe70e8b72da spamassassin-2.55-3.2.i386.rpm
ia64:
a53253a30f1eac9bfa99cf48864fbea0 spamassassin-2.55-3.2.ia64.rpm
ppc:
f14d7231b8eeb09f44e6a7526d4dba4f spamassassin-2.55-3.2.ppc.rpm
s390:
a7fb9f360bffaa24ecd5da9b3406ba1a spamassassin-2.55-3.2.s390.rpm
s390x:
d259c8305d3661fe8137badccd4dee8c spamassassin-2.55-3.2.s390x.rpm
x86_64:
a49500110469d36992245f63ca0ba7ec spamassassin-2.55-3.2.x86_64.rpm
Red Hat Desktop version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/spamassassin-2.55-3.2.src.rpm
dc61064510ef1814b033366f15838f7d spamassassin-2.55-3.2.src.rpm
i386:
52dea7b072ab36c717be6fe70e8b72da spamassassin-2.55-3.2.i386.rpm
x86_64:
a49500110469d36992245f63ca0ba7ec spamassassin-2.55-3.2.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/spamassassin-2.55-3.2.src.rpm
dc61064510ef1814b033366f15838f7d spamassassin-2.55-3.2.src.rpm
i386:
52dea7b072ab36c717be6fe70e8b72da spamassassin-2.55-3.2.i386.rpm
ia64:
a53253a30f1eac9bfa99cf48864fbea0 spamassassin-2.55-3.2.ia64.rpm
x86_64:
a49500110469d36992245f63ca0ba7ec spamassassin-2.55-3.2.x86_64.rpm
Red Hat Enterprise Linux WS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/spamassassin-2.55-3.2.src.rpm
dc61064510ef1814b033366f15838f7d spamassassin-2.55-3.2.src.rpm
i386:
52dea7b072ab36c717be6fe70e8b72da spamassassin-2.55-3.2.i386.rpm
ia64:
a53253a30f1eac9bfa99cf48864fbea0 spamassassin-2.55-3.2.ia64.rpm
x86_64:
a49500110469d36992245f63ca0ba7ec spamassassin-2.55-3.2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key.html#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0796
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact.html
Copyright 2004 Red Hat, Inc.
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