Scientific Linux Security Update : glibc on SL5.x i386/x86_64

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

The glibc packages provide the standard C and standard math libraries
used by multiple programs on the system. Without these libraries, the
Linux system cannot function properly.

It was discovered that the formatted printing functionality in glibc
did not properly restrict the use of alloca(). This could allow an
attacker to bypass FORTIFY_SOURCE protections and execute arbitrary
code using a format string flaw in an application, even though these
protections are expected to limit the impact of such flaws to an
application abort. (CVE-2012-3406)

This update also fixes the following bug :

- If a file or a string was in the IBM-930 encoding, and
contained the invalid multibyte character '0xffff',
attempting to use iconv() (or the iconv command) to
convert that file or string to another encoding, such as
UTF-8, resulted in a segmentation fault. With this
update, the conversion code for the IBM-930 encoding
recognizes this invalid character and calls an error
handler, rather than causing a segmentation fault.

All users of glibc are advised to upgrade to these updated packages,
which contain backported patches to fix these issues.

See also :

http://www.nessus.org/u?8b863dc3

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 61368 ()

Bugtraq ID:

CVE ID: CVE-2012-3406