Vulnerability CVE-2011-2503
Published: 2012-07-26

Description:
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.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:L/AC:H/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.7/10
6.4/10
1.9/10
Exploit range
Attack complexity
Authentication
Local
High
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Systemtap -> Systemtap 

 References:
http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=commitdiff;h=ed51cfa24ca27746ab09b59280b94117dd58cba3
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2503
http://www.debian.org/security/2011/dsa-2348
http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=blob;f=NEWS;hb=304d73b1fea24af791f2a129fb141c5009eae6a8
http://secunia.com/advisories/46920
http://secunia.com/advisories/45377
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