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CVE-2009-1527

MediumPublished

Race condition in the ptrace_attach function in kernel/ptrace.c in the Linux kernel before 2.6.30-rc4 allows local users to gain privileges via a...

Published: May 5, 2009
Updated: Aug 7, 2024
Assigning CNA: mitre
Evidence observed: May 13, 2009

Primary CVSS

6.9/ 10Medium

nvd · CVSS 2.0

AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS probability estimate

0.5%

Low · next 30 days

Percentile: 41.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Race condition in the ptrace_attach function in kernel/ptrace.c in the Linux kernel before 2.6.30-rc4 allows local users to gain privileges via a PTRACE_ATTACH ptrace call during an exec system call that is launching a setuid application, related to locking an incorrect cred_exec_mutex object.

Sources

Linux Kernel 2.6.x (Gentoo 2.6.29rc1) - 'ptrace_attach' Local Privilege EscalationExploit
s0m3b0dy · linux · May 13, 2009

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