CVE-2009-2911

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. Limited direct impact.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2009-10-22 16:30 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:10 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 1.9 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2009-10-22 16:30 UTC

Last modified

2026-06-16 23:10 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-264

Record status

Modified

Affected

• Systemtap 1.0

Attack profile CVSS 2.0 · 1.9

Attack vector

Local

Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2009-2911.md and follow it. Check whether this project is affected by CVE-2009-2911. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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