RHEL 5 / 6 : systemtap (RHSA-2012:0376)

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


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated systemtap packages that fix one security issue are now
available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

SystemTap is an instrumentation system for systems running the Linux
kernel. The system allows developers to write scripts to collect data
on the operation of the system.

An invalid pointer read flaw was found in the way SystemTap handled
malformed debugging information in DWARF format. When SystemTap
unprivileged mode was enabled, an unprivileged user in the stapusr
group could use this flaw to crash the system or, potentially, read
arbitrary kernel memory. Additionally, a privileged user (root, or a
member of the stapdev group) could trigger this flaw when tricked into
instrumenting a specially crafted ELF binary, even when unprivileged
mode was not enabled. (CVE-2012-0875)

SystemTap users should upgrade to these updated packages, which
contain a backported patch to correct this issue.

See also :

https://www.redhat.com/security/data/cve/CVE-2012-0875.html
http://rhn.redhat.com/errata/RHSA-2012-0376.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.4
(CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:C)
CVSS Temporal Score : 4.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 58298 ()

Bugtraq ID: 52121

CVE ID: CVE-2012-0875