CVE-2009-1337

Medium

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.

Package Linux Kernel
Published 2009-04-22
Last modified 2026-04-23
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

4.4

out of 10
Medium
Attack Vector
Local
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Vector string
AV:L/AC:M/Au:N/C:P/I:P/A:P

Weakness type

CWE-264

CVE-2009-1337 is a Permissions, Privileges and Access Control vulnerability

What is Permissions, Privileges and Access Control?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2009-1337 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2009-1337?

    CVE-2009-1337 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2009-1337 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2009-1337?

    CVE-2009-1337 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:P/I:P/A:P .

  • Is there a patch available for CVE-2009-1337?

    No patch is currently available for CVE-2009-1337. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2009-1337 actively exploited?

    No — CVE-2009-1337 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Permissions, Privileges and Access Control (CWE-264)?

    Weaknesses in this category are related to the management of permissions, privileges, and access controls. View CWE-264 on MITRE CWE →

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