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CVE-2011-2503

Date: July 26, 2012

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.

Language: C

Severity Score

Related Resources (9)

http://secunia.com/advisories/45377
https://access.redhat.com/security/cve/CVE-2011-2503
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2503
http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git%3Ba=commitdiff%3Bh=ed51cfa24ca27746ab09b59280b94117dd58cba3
http://www.debian.org/security/2011/dsa-2348
http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git%3Ba=blob%3Bf=NEWS%3Bhb=304d73b1fea24af791f2a129fb141c5009eae6a8
https://nvd.nist.gov/vuln/detail/CVE-2011-2503
http://secunia.com/advisories/46920
https://www.mend.io/vulnerability-database/CVE-2011-2503

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): HIGH
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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