CVE-2009-1527

high

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.

References

Advisories
More

https://exchange.xforce.ibmcloud.com/vulnerabilities/50293

http://www.securityfocus.com/bid/34799

http://www.securityfocus.com/archive/1/503610/100/0/threaded

http://www.openwall.com/lists/oss-security/2009/05/04/2

http://www.vupen.com/english/advisories/2009/1236

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb

Details

Source: Mitre, NVD

Published: 2009-05-05

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 6.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00061