Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2009-1337

Severity CVSS v4.0:
Pending analysis
Type:
CWE-264 Permissions, Privileges, and Access Control
Publication date:
22/04/2009
Last modified:
09/04/2025

Description

The exit_notify function in kernel/exit.c in the Linux kernel before 2.6.30-rc1 does not restrict exit signals when the CAP_KILL capability is held, which allows local users to send an arbitrary signal to a process by running a program that modifies the exit_signal field and then uses an exec system call to launch a setuid application.

Impact

Vector 2.0
AV:L/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.40 MEDIUM
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
4.40
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:rc2_git7:*:*:*:*:*:* 2.6.29 (including)
cpe:2.3:o:linux:linux_kernel:2.2.27:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.36:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.36.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.36.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.36.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.36.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.36.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.36.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.4:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools