CVE-2009-1527
Race condition in the ptrace_attach function in kernel/ptrace.c in the Linux kernel before 2.6.30...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-1527- CVSS 2.0
- 6.9 Medium
AV:L/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-362
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-1527- Updated
- 2026-11-02
EUVDEUVD-2009-1523 No score
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.
- Record
EUVD-2009-1523- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5xgr-5h52-x493 No score
Race condition in the ptrace_attach function in kernel/ptrace.c in the Linux kernel before 2.6.30...
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.
- Record
GHSA-5xgr-5h52-x493- Weakness
- CWE-362
- Updated
- 2026-11-02
OSVBELL-CVE-2009-1527
CVE-2009-1527 does not affect BellSoft software
- Record
BELL-CVE-2009-1527- CVSS 2.0
- 6.9 Medium
AV:L/AC:M/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Linux Kernel 2.6.x (Gentoo 2.6.29rc1) - 'ptrace_attach' Local Privilege Escalation | 2009-05-13 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-1527 is a medium vulnerability (CVSS 6.9) in Linux Kernel, published May 5, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. No source names a fixed version.
References
exchange.xforce.ibmcloud.com/vulnerabilities/50293
securityfocus.com/archive/1/503610/100/0/threaded
osvdb.org/54188
kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc4
secunia.com/advisories/35120
openwall.com/lists/oss-security/2009/05/04/2
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git.kernel.org?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb
vupen.com/english/advisories/2009/1236
wiki.rpath.com/Advisories:rPSA-2009-0084
nvd.nist.gov/vuln/detail/CVE-2009-1527
github.com/advisories/GHSA-5xgr-5h52-x493
docs.bell-sw.com/security/cves/CVE-2009-1527