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Debian 3.0 DSA 364-3 Critical: Man-Db Memory Error DoS Fix

debian
Calendar Grey August 18, 2003
Debian Logo
Address man-db memory issue in Debian leading to DoS attacks and system crashes, vital update recommended.
This update introduced an error in the routinethat resolves hardlinks: depending on the filenames of hardlinked manpages, that routine might itself overrun allocated memory, causin...

Summary

A previous man-db update (DSA-364-1) fixed buffer overruns in ult_src, a
part of the "mandb" command that finds the canonical source file for
each man page. However, this update introduced an error in the routine
that resolves hardlinks: depending on the filenames of hardlinked man
pages, that routine might itself overrun allocated memory, causing a
segmentation fault.

For the current stable distribution (woody), this problem has been fixed
in version 2.3.20-18.woody.4.

For the unstable distribution (sid), this problem has been fixed in
version 2.4.1-13.

We recommend that you update your man-db 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...

Read the Full Advisory

Severity
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Package: man-db

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