National Vulnerability Database (NVD) National Vulnerability Database (CVE-2011-2503)

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Vulnerability Summary for CVE-2011-2503

Original release date:07/26/2012

Last revised:07/27/2012

Source: US-CERT/NIST

Overview

The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly validate a module when loading it, which allows local users to gain privileges via a race condition between the signature validation and the module initialization.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:3.7 (LOW) (AV:L/AC:H/Au:N/C:P/I:P/A:P) (legend)

Impact Subscore: 6.4

Exploitability Subscore: 1.9

CVSS Version 2 Metrics:

Access Vector: Locally exploitable

Access Complexity: High

Authentication: Not required to exploit

Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

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External Source: CONFIRM

Name: http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=commitdiff;h=ed51cfa24ca27746ab09b59280b94117dd58cba3

Type: Patch Information; Exploit

Hyperlink:http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=commitdiff;h=ed51cfa24ca27746ab09b59280b94117dd58cba3

External Source: MISC

Name: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2503

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2503

External Source: DEBIAN

Name: DSA-2348

Hyperlink:http://www.debian.org/security/2011/dsa-2348

External Source: CONFIRM

Name: http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=blob;f=NEWS;hb=304d73b1fea24af791f2a129fb141c5009eae6a8