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CVE-2009-1527

Date: May 5, 2009

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.

Language: C

Severity Score

Related Resources (13)

http://www.securityfocus.com/archive/1/503610/100/0/threaded
http://www.vupen.com/english/advisories/2009/1236
https://exchange.xforce.ibmcloud.com/vulnerabilities/50293
http://www.osvdb.org/54188
http://www.securityfocus.com/bid/34799
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb
http://secunia.com/advisories/34977
https://nvd.nist.gov/vuln/detail/CVE-2009-1527
http://secunia.com/advisories/35120
http://wiki.rpath.com/Advisories:rPSA-2009-0084
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc4
http://www.openwall.com/lists/oss-security/2009/05/04/2
https://www.mend.io/vulnerability-database/CVE-2009-1527

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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