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.

Published: 2012-07-26 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2503 is rated Low Risk (21.3/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.07%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

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

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-17 0.04% 0.07% +0.03%
2 2023-03-07 1.03% 0.04% -0.99%
3 2022-02-04 — 1.03% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2503

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 2.0 LOW
AV:L/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 1.9 6.4 [email protected]

Weakness enumeration for CVE-2011-2503

OS Trackers for CVE-2011-2503

vendor priority summary link
debian not yet assigned CVE-2011-2503 not yet assigned priority: Debian including 1 source packages (systemtap), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-2503
redhat medium — https://access.redhat.com/security/cve/CVE-2011-2503
ubuntu medium CVE-2011-2503 medium priority: Ubuntu including 1 source packages (systemtap), 9 status rows across 9 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, upstream): ignored 5, not-affected 3, needs-triage 1. https://ubuntu.com/security/CVE-2011-2503

Affected software / configurations for CVE-2011-2503

Vendor Product Version Raw CPE
systemtap systemtap <= 1.5 cpe:2.3:a:systemtap:systemtap:*:*:*:*:*:*:*:*
systemtap systemtap 0.2.2 cpe:2.3:a:systemtap:systemtap:0.2.2:*:*:*:*:*:*:*
systemtap systemtap 0.3 cpe:2.3:a:systemtap:systemtap:0.3:*:*:*:*:*:*:*
systemtap systemtap 0.4 cpe:2.3:a:systemtap:systemtap:0.4:*:*:*:*:*:*:*
systemtap systemtap 0.5 cpe:2.3:a:systemtap:systemtap:0.5:*:*:*:*:*:*:*
systemtap systemtap 0.5.3 cpe:2.3:a:systemtap:systemtap:0.5.3:*:*:*:*:*:*:*
systemtap systemtap 0.5.4 cpe:2.3:a:systemtap:systemtap:0.5.4:*:*:*:*:*:*:*
systemtap systemtap 0.5.5 cpe:2.3:a:systemtap:systemtap:0.5.5:*:*:*:*:*:*:*
systemtap systemtap 0.5.7 cpe:2.3:a:systemtap:systemtap:0.5.7:*:*:*:*:*:*:*
systemtap systemtap 0.5.8 cpe:2.3:a:systemtap:systemtap:0.5.8:*:*:*:*:*:*:*
systemtap systemtap 0.5.9 cpe:2.3:a:systemtap:systemtap:0.5.9:*:*:*:*:*:*:*
systemtap systemtap 0.5.10 cpe:2.3:a:systemtap:systemtap:0.5.10:*:*:*:*:*:*:*
systemtap systemtap 0.5.12 cpe:2.3:a:systemtap:systemtap:0.5.12:*:*:*:*:*:*:*
systemtap systemtap 0.5.13 cpe:2.3:a:systemtap:systemtap:0.5.13:*:*:*:*:*:*:*
systemtap systemtap 0.5.14 cpe:2.3:a:systemtap:systemtap:0.5.14:*:*:*:*:*:*:*
systemtap systemtap 0.6 cpe:2.3:a:systemtap:systemtap:0.6:*:*:*:*:*:*:*
systemtap systemtap 0.6.2 cpe:2.3:a:systemtap:systemtap:0.6.2:*:*:*:*:*:*:*
systemtap systemtap 0.7 cpe:2.3:a:systemtap:systemtap:0.7:*:*:*:*:*:*:*
systemtap systemtap 0.7.2 cpe:2.3:a:systemtap:systemtap:0.7.2:*:*:*:*:*:*:*
systemtap systemtap 0.8 cpe:2.3:a:systemtap:systemtap:0.8:*:*:*:*:*:*:*
systemtap systemtap 0.9 cpe:2.3:a:systemtap:systemtap:0.9:*:*:*:*:*:*:*
systemtap systemtap 0.9.5 cpe:2.3:a:systemtap:systemtap:0.9.5:*:*:*:*:*:*:*
systemtap systemtap 0.9.7 cpe:2.3:a:systemtap:systemtap:0.9.7:*:*:*:*:*:*:*
systemtap systemtap 0.9.8 cpe:2.3:a:systemtap:systemtap:0.9.8:*:*:*:*:*:*:*
systemtap systemtap 0.9.9 cpe:2.3:a:systemtap:systemtap:0.9.9:*:*:*:*:*:*:*
systemtap systemtap 1.0 cpe:2.3:a:systemtap:systemtap:1.0:*:*:*:*:*:*:*
systemtap systemtap 1.1 cpe:2.3:a:systemtap:systemtap:1.1:*:*:*:*:*:*:*
systemtap systemtap 1.2 cpe:2.3:a:systemtap:systemtap:1.2:*:*:*:*:*:*:*
systemtap systemtap 1.3 cpe:2.3:a:systemtap:systemtap:1.3:*:*:*:*:*:*:*
systemtap systemtap 1.4 cpe:2.3:a:systemtap:systemtap:1.4:*:*:*:*:*:*:*

References for CVE-2011-2503

cvelogic Threat Intelligence