How severe is CVE-2009-2911?

CVE-2009-2911 has a CVSS 2.0 base score of 1.9, rated low severity.

Is CVE-2009-2911 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2911?

CVE-2009-2911 affects Systemtap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-2911?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-2911 published?

CVE-2009-2911 was published on 2009-10-22 and last updated on 2026-06-16.

CVE-2009-2911

CVE-2009-2911 is a low-severity vulnerability in Systemtap with a CVSS 2.0 base score of 1.9. 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-264.

Key facts

Severity: Low (CVSS 2.0 base score 1.9)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Systemtap
Published: 2009-10-22
Last modified: 2026-06-16

Description

SystemTap 1.0, when the --unprivileged option is used, does not properly restrict certain data sizes, which allows local users to (1) cause a denial of service or gain privileges via a print operation with a large number of arguments that trigger a kernel stack overflow, (2) cause a denial of service via crafted DWARF expressions that trigger a kernel stack frame overflow, or (3) cause a denial of service (infinite loop) via vectors that trigger creation of large unwind tables, related to Common Information Entry (CIE) and Call Frame Instruction (CFI) records.

Frequently asked questions

What is CVE-2009-2911?: SystemTap 1.0, when the --unprivileged option is used, does not properly restrict certain data sizes, which allows local users to (1) cause a denial of service or gain privileges via a print operation with a large number of arguments that trigger a kernel stack overflow, (2) cause a denial of service via crafted DWARF expressions that trigger a kernel stack frame overflow, or (3) cause a denial of service (infinite loop) via vectors that trigger creation of large unwind tables, related to Common Information Entry (CIE) and Call Frame Instruction (CFI) records.
How severe is CVE-2009-2911?: CVE-2009-2911 has a CVSS 2.0 base score of 1.9, rated low severity.
Is CVE-2009-2911 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2911?: CVE-2009-2911 affects Systemtap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-2911?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2911 published?: CVE-2009-2911 was published on 2009-10-22 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:systemtap:systemtap:1.0:*:*:*:*:*:*:*

More vulnerabilities in Systemtap

CVE-2009-4273 — Critical (CVSS 10.0): stap-server in SystemTap before 1.1 allows remote attackers to execute arbitrary commands via shell metacharacters in…
CVE-2010-0412 — High (CVSS 7.5): stap-server in SystemTap 1.1 does not properly restrict the value of the -B (aka BUILD) option, which allows attackers…
CVE-2010-4170 — High (CVSS 7.2): The staprun runtime tool in SystemTap 1.3 does not properly clear the environment before executing modprobe, which…
CVE-2009-0784 — Medium (CVSS 6.3): Race condition in the SystemTap stap tool 0.0.20080705 and 0.0.20090314 allows local users in the stapusr group to…
CVE-2012-0875 — Medium (CVSS 5.4): SystemTap 1.7, 1.6.7, and probably other versions, when unprivileged mode is enabled, allows local users to obtain…
CVE-2010-0411 — Medium (CVSS 4.9): Multiple integer signedness errors in the (1) __get_argv and (2) __get_compat_argv functions in tapset/aux_syscalls.stp…

All CVEs affecting Systemtap →

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities

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