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.
Published 2012-07-26 19:55:01
Updated 2012-07-27 12:04:33
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Input validation

Exploit prediction scoring system (EPSS) score for CVE-2011-2503

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-2503

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.7
LOW AV:L/AC:H/Au:N/C:P/I:P/A:P
1.9
6.4
NIST

CWE ids for CVE-2011-2503

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-2503

Products affected by CVE-2011-2503

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