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Debian: DSA 458-1 Critical: Python2.2 Buffer Overflow Issue

debian
Calendar Grey March 10, 2004
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The Ubuntu Security Team warns of a major vulnerability in Python 2.2 exploiting buffer overflow via crafted IPv6 addresses. Prompt updates are advised
A crafted IPv6 address can overwrite memory in the stack.

Summary

Sebastian Schmidt discovered a buffer overflow bug in Python's
getaddrinfo function, which could allow an IPv6 address, supplied by a
remote attacker via DNS, to overwrite memory on the stack.

This bug only exists in python 2.2 and 2.2.1, and only when IPv6
support is disabled. The python2.2 package in Debian woody meets
these conditions (the 'python' package does not).

For the stable distribution (woody), this bug has been fixed in
version 2.2.1-4.3.

The unstable distribution (sid) is not affected by this bug.

We recommend that you update your python2.2 package.

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

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

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configurat...

Read the Full Advisory

Severity
critical
Lowest
Low
Medium
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Critical

Package: python2.2

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