How severe is CVE-2011-1781?

CVE-2011-1781 has a CVSS 2.0 base score of 1.2, rated low severity.

Is CVE-2011-1781 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1781?

CVE-2011-1781 affects Systemtap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-1781?

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

When was CVE-2011-1781 published?

CVE-2011-1781 was published on 2011-08-29 and last updated on 2026-06-16.

CVE-2011-1781

CVE-2011-1781 is a low-severity vulnerability in Systemtap with a CVSS 2.0 base score of 1.2. 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-189.

Key facts

Severity: Low (CVSS 2.0 base score 1.2)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Systemtap
Published: 2011-08-29
Last modified: 2026-06-16

Description

SystemTap 1.4, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding (aka backtracing).

Frequently asked questions

What is CVE-2011-1781?: SystemTap 1.4, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding (aka backtracing).
How severe is CVE-2011-1781?: CVE-2011-1781 has a CVSS 2.0 base score of 1.2, rated low severity.
Is CVE-2011-1781 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1781?: CVE-2011-1781 affects Systemtap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1781?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1781 published?: CVE-2011-1781 was published on 2011-08-29 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:systemtap:systemtap:1.4:*:*:*:*:*:*:*

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 →

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