CVE-2009-3547

Name: CVE-2009-3547
Creator: NVD / NIST
Published: 2009-11-04T15:30:00.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 4.93%

Last modified Jun 16, 2026

CVE-2009-3547 is a high-severity vulnerability rated 7/10 on the CVSS scale. Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service (NULL pointer dereference and system crash) or gain privileges by attempting to open an anonymous pipe via a /proc/*/fd/ pathname.. EPSS estimates a 4.93% chance of exploitation in the next 30 days.

Description

Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service (NULL pointer dereference and system crash) or gain privileges by attempting to open an anonymous pipe via a /proc/*/fd/ pathname.

Metrics

CVSS 3.1

7/10

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

EPSS Probability

4.93%

91.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	<= 2.6.31.14	—
Linux	Linux Kernel	2.6.32	—
Novell	Linux Desktop	9	—
Opensuse	Opensuse	11.0	—
Opensuse	Opensuse	11.2	—
Suse	Suse Linux Enterprise Desktop	10	Sp2
Suse	Suse Linux Enterprise Server	10	Sp2
Canonical	Ubuntu Linux	6.06	—
Canonical	Ubuntu Linux	8.04	—
Canonical	Ubuntu Linux	8.10	—
Canonical	Ubuntu Linux	9.04	—
Canonical	Ubuntu Linux	9.10	—
Fedoraproject	Fedora	10	—
Vmware	Vma	4.0	—
Vmware	Esx	4.0	—
Redhat	Mrg Realtime	1.0	—
Redhat	Enterprise Linux Desktop	3.0	—
Redhat	Enterprise Linux Desktop	4.0	—
Redhat	Enterprise Linux Desktop	5.0	—
Redhat	Enterprise Linux Eus	4.8	—
Redhat	Enterprise Linux Eus	5.4	—
Redhat	Enterprise Linux Server	3.0	—
Redhat	Enterprise Linux Server	4.0	—
Redhat	Enterprise Linux Server	5.0	—
Redhat	Enterprise Linux Workstation	3.0	—
Redhat	Enterprise Linux Workstation	4.0	—
Redhat	Enterprise Linux Workstation	5.0	—

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ad3960243e55320d74195fb85c975e0a8cc4466cBroken Link
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.htmlBroken Link, Mailing List, Third Party Advisory
http://lists.vmware.com/pipermail/security-announce/2010/000082.htmlMailing List, Third Party Advisory
http://lkml.org/lkml/2009/10/14/184Exploit, Mailing List
http://lkml.org/lkml/2009/10/21/42Mailing List, Patch
http://marc.info/?l=oss-security&m=125724568017045&w=2Mailing List, Third Party Advisory
http://secunia.com/advisories/37351Broken Link
http://secunia.com/advisories/38017Broken Link
http://secunia.com/advisories/38794Broken Link
http://secunia.com/advisories/38834Broken Link
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc6Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2009:329Broken Link
http://www.redhat.com/support/errata/RHSA-2009-1672.htmlBroken Link
http://www.securityfocus.com/archive/1/512019/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/36901Broken Link, Exploit, Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/usn-864-1Third Party Advisory
http://www.vupen.com/english/advisories/2010/0528Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=530490Issue Tracking, Patch, Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11513Broken Link, Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7608Broken Link, Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9327Broken Link, Third Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1540.htmlThird Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1541.htmlThird Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1548.htmlThird Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1550.htmlThird Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00190.htmlMailing List
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ad3960243e55320d74195fb85c975e0a8cc4466cBroken Link
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.htmlBroken Link, Mailing List, Third Party Advisory
http://lists.vmware.com/pipermail/security-announce/2010/000082.htmlMailing List, Third Party Advisory
http://lkml.org/lkml/2009/10/14/184Exploit, Mailing List
http://lkml.org/lkml/2009/10/21/42Mailing List, Patch
http://marc.info/?l=oss-security&m=125724568017045&w=2Mailing List, Third Party Advisory
http://secunia.com/advisories/37351Broken Link
http://secunia.com/advisories/38017Broken Link
http://secunia.com/advisories/38794Broken Link
http://secunia.com/advisories/38834Broken Link
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc6Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2009:329Broken Link
http://www.redhat.com/support/errata/RHSA-2009-1672.htmlBroken Link
http://www.securityfocus.com/archive/1/512019/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/36901Broken Link, Exploit, Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/usn-864-1Third Party Advisory
http://www.vupen.com/english/advisories/2010/0528Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=530490Issue Tracking, Patch, Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11513Broken Link, Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7608Broken Link, Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9327Broken Link, Third Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1540.htmlThird Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1541.htmlThird Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1548.htmlThird Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1550.htmlThird Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00190.htmlMailing List

Timeline

Published: Nov 4, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-3547?

How severe is CVE-2009-3547?

CVE-2009-3547 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 4.93% probability of exploitation in the next 30 days.

How do I fix CVE-2009-3547?

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-2009-3547?

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

Scan your code now

Source: NVD / NIST