CVE-2011-2503

CVE-2011-2503 is a low-severity vulnerability in Systemtap with a CVSS 2.0 base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

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.

Frequently asked questions

What is CVE-2011-2503?
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.
How severe is CVE-2011-2503?
CVE-2011-2503 has a CVSS 2.0 base score of 3.7, rated low severity.
Is CVE-2011-2503 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2503?
CVE-2011-2503 primarily affects Systemtap. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2503?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2503 published?
CVE-2011-2503 was published on 2012-07-26 and last updated on 2026-06-16.

References

Affected products (30)

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