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Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA039] DSA-039-1 glibc


Vulnerability Assessment Details

[DSA039] DSA-039-1 glibc

Vulnerability Assessment Summary
DSA-039-1 glibc

Detailed Explanation for this Vulnerability Assessment
The version of GNU libc that was distributed with Debian
GNU/Linux 2.2 suffered from 2 security problems:


It was possible to use LD_PRELOAD to load libraries that are listed in
/etc/ld.so.cache, even for suid programs. This could be used to create (and
overwrite) files which a user should not be permited to.
By using LD_PROFILE suid programs would write data to a file to /var/tmp,
which was not done safely. Again, this could be used to create (and overwrite)
files which a user should not have access to.


Both problems have been fixed in version 2.1.3-17 and we recommend that
you upgrade your glibc packages immediately.

Please note that a side-effect of this upgrade is that ldd will no longer
work on suid programs, unless you logged in as root.



Solution : http://www.debian.org/security/2001/dsa-039
Network Security Threat Level: High

Networks Security ID: 2223

Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi

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