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Debian Exim Moderate Buffer Overflow Vuln DSA 501-1 CAN-2004-0399-0400

debian
Calendar Grey May 10, 2004
Scroller Debian
Debian Security Advisory DSA 501-1 details a posture against buffer overflows affecting Exim due to configuration settings.
Neither of these stack-based buffer overflows is exploitable with the default Debian configuration.

Summary

Georgi Guninski discovered two stack-based buffer overflows. They can
not be exploited with the default configuration from the Debian
system, though. The Common Vulnerabilities and Exposures project
identifies the following problems that are fixed with this update:

CAN-2004-0399

When "sender_verify = true" is configured in exim.conf a buffer
overflow can happen during verification of the sender. This
problem is fixed in exim 4.

CAN-2004-0400

When headers_check_syntax is configured in exim.conf a buffer
overflow can happen during the header check. This problem does
also exist in exim 4.

For the stable distribution (woody) these problems have been fixed in
version 3.35-1woody3.

For the unstable distribution (sid) these problems have been fixed in
version 3.36-11 for exim 3 and in version 4.33-1 for exim 4.

We recommend that you upgrade your exim package.


Upgrade Instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install...

Read the Full Advisory

Severity
moderate
Lowest
Low
Medium
High
Critical

Package: exim
CVE ID: CAN-2004-0399 CAN-2004-0400

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