Mandrake Linux Security Advisory : glibc (MDKSA-2001:012)

This script is Copyright (C) 2012-2013 Tenable Network Security, Inc.


Synopsis :

The remote Mandrake Linux host is missing one or more security
updates.

Description :

The LD_PRELOAD variable in the GNU C Library is honoured normally even
for SUID/SGID applications (but removed afterwards from the
environment) if it does not contain '/' characters. There is a special
check which only preloads found libraries if they have the SUID bit
set. However, if a library has been found in /etc/ld.so.cache, this
check was not performed. As a result, a malicious user could preload
some library located in /lib or /usr/lib before SUID/SGID applications
and create or overwrite a file he would not normally have permission
to. As well, LD_PROFILE output from SUID programs would go into
/var/tmp, making it vulnerable to various link attacks.

Solution :

Update the affected glibc, glibc-devel and / or glibc-profile
packages.

Risk factor :

Low / CVSS Base Score : 2.1
(CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N)

Family: Mandriva Local Security Checks

Nessus Plugin ID: 61886 ()

Bugtraq ID:

CVE ID: CVE-2001-0169

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