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Test ID:1.3.6.1.4.1.25623.1.0.870636
Category:Red Hat Local Security Checks
Title:RedHat Update for systemtap RHSA-2011:1088-01
Summary:The remote host is missing an update for the 'systemtap'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'systemtap'
package(s) announced via the referenced advisory.

Vulnerability Insight:
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.

It was found that SystemTap did not perform proper module path sanity
checking if a user specified a custom path to the uprobes module, used
when performing user-space probing ('staprun -u'). A local user who is a
member of the stapusr group could use this flaw to bypass intended
module-loading restrictions, allowing them to escalate their privileges by
loading an arbitrary, unsigned module. (CVE-2011-2502)

A race condition flaw was found in the way the staprun utility performed
module loading. A local user who is a member of the stapusr group could
use this flaw to modify a signed module while it is being loaded,
allowing them to escalate their privileges. (CVE-2011-2503)

SystemTap users should upgrade to these updated packages, which contain
backported patches to correct these issues.

Affected Software/OS:
systemtap on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)

Solution:
Please Install the Updated Packages.

CVSS Score:
4.4

CVSS Vector:
AV:L/AC:M/Au:N/C:P/I:P/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-2502
https://bugzilla.redhat.com/show_bug.cgi?id=716476
http://secunia.com/advisories/45377
Common Vulnerability Exposure (CVE) ID: CVE-2011-2503
Debian Security Information: DSA-2348 (Google Search)
http://www.debian.org/security/2011/dsa-2348
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2503
http://secunia.com/advisories/46920
CopyrightCopyright (c) 2012 Greenbone Networks GmbH

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