CVE-2009-1527

Name: CVE-2009-1527
Creator: NVD / NIST
Published: 2009-05-05T20:30:00.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.49%

Last modified Jun 16, 2026

CVE-2009-1527 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.49%

38.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 2.6.29
Linux	Linux Kernel	2.6.30

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb
http://secunia.com/advisories/34977Broken Link
http://secunia.com/advisories/35120Broken Link
http://wiki.rpath.com/Advisories:rPSA-2009-0084Broken Link
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc4Broken Link
http://www.openwall.com/lists/oss-security/2009/05/04/2Mailing List, Third Party Advisory
http://www.osvdb.org/54188Broken Link
http://www.securityfocus.com/archive/1/503610/100/0/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/bid/34799Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2009/1236Not Applicable
https://exchange.xforce.ibmcloud.com/vulnerabilities/50293Third Party Advisory, VDB Entry
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb
http://secunia.com/advisories/34977Broken Link
http://secunia.com/advisories/35120Broken Link
http://wiki.rpath.com/Advisories:rPSA-2009-0084Broken Link
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc4Broken Link
http://www.openwall.com/lists/oss-security/2009/05/04/2Mailing List, Third Party Advisory
http://www.osvdb.org/54188Broken Link
http://www.securityfocus.com/archive/1/503610/100/0/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/bid/34799Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2009/1236Not Applicable
https://exchange.xforce.ibmcloud.com/vulnerabilities/50293Third Party Advisory, VDB Entry

Timeline

Published: May 5, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-1527?

How severe is CVE-2009-1527?

Severity scoring for CVE-2009-1527 is pending analysis. The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2009-1527?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-1527?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST