CVE-2009-1388

Name: CVE-2009-1388
Creator: NVD / NIST
Published: 2009-07-05T16:30:00.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.36%

Last modified Jun 16, 2026

CVE-2009-1388 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The ptrace_start function in kernel/ptrace.c in the Linux kernel 2.6.18 does not properly handle simultaneous execution of the do_coredump function, which allows local users to cause a denial of service (deadlock) via vectors involving the ptrace system call and a coredumping thread.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

Description

The ptrace_start function in kernel/ptrace.c in the Linux kernel 2.6.18 does not properly handle simultaneous execution of the do_coredump function, which allows local users to cause a denial of service (deadlock) via vectors involving the ptrace system call and a coredumping thread.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.36%

28.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-667

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	2.6.18

References

http://marc.info/?l=oss-security&m=124654277229434&w=2Mailing List, Patch
http://osvdb.org/55679Broken Link
http://secunia.com/advisories/36131Broken Link
http://secunia.com/advisories/37471Broken Link
http://www.redhat.com/support/errata/RHSA-2009-1193.htmlBroken Link
http://www.securityfocus.com/archive/1/507985/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/35559Broken Link, Third Party Advisory, VDB Entry
http://www.vmware.com/security/advisories/VMSA-2009-0016.htmlThird Party Advisory
http://www.vupen.com/english/advisories/2009/3316Broken Link
https://bugzilla.redhat.com/attachment.cgi?id=346615Mailing List, Patch
https://bugzilla.redhat.com/attachment.cgi?id=346742Patch
https://bugzilla.redhat.com/show_bug.cgi?id=504263Issue Tracking, Patch
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8625Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8680Broken Link
http://marc.info/?l=oss-security&m=124654277229434&w=2Mailing List, Patch
http://osvdb.org/55679Broken Link
http://secunia.com/advisories/36131Broken Link
http://secunia.com/advisories/37471Broken Link
http://www.redhat.com/support/errata/RHSA-2009-1193.htmlBroken Link
http://www.securityfocus.com/archive/1/507985/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/35559Broken Link, Third Party Advisory, VDB Entry
http://www.vmware.com/security/advisories/VMSA-2009-0016.htmlThird Party Advisory
http://www.vupen.com/english/advisories/2009/3316Broken Link
https://bugzilla.redhat.com/attachment.cgi?id=346615Mailing List, Patch
https://bugzilla.redhat.com/attachment.cgi?id=346742Patch
https://bugzilla.redhat.com/show_bug.cgi?id=504263Issue Tracking, Patch
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8625Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8680Broken Link

Timeline

Published: Jul 5, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-1388?

How severe is CVE-2009-1388?

CVE-2009-1388 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2009-1388?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-1388?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST