CVE-2009-3621

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Summary

CVECVE-2009-3621
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-10-22 16:00:00 UTC
Updated2026-04-23 00:35:47 UTC
Descriptionnet/unix/af_unix.c in the Linux kernel 2.6.31.4 and earlier allows local users to cause a denial of service (system hang) by creating an abstract-namespace AF_UNIX listening socket, performing a shutdown operation on this socket, and then performing a series of connect operations to this socket.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

Problem Types: CWE-400 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:L/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 6.06 All All All
Operating System Canonical Ubuntu Linux 8.04 All All All
Operating System Canonical Ubuntu Linux 8.10 All All All
Operating System Canonical Ubuntu Linux 9.04 All All All
Operating System Canonical Ubuntu Linux 9.10 All All All
Operating System Fedoraproject Fedora 10 All All All
Operating System Linux Linux Kernel All All All All
Operating System Opensuse Opensuse 11.0 All All All
Operating System Opensuse Opensuse 11.2 All All All
Operating System Suse Suse Linux Enterprise Desktop 10 sp2 All All
Operating System Suse Suse Linux Enterprise Desktop 10 sp3 All All
Operating System Suse Suse Linux Enterprise Server 10 sp2 All All
Operating System Suse Suse Linux Enterprise Server 10 sp3 All All
Operating System Vmware Esx 4.0 All All All
Application Vmware Vma 4.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
SUSE update for kernel - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org Third Party Advisory
VMware vMA Update for Multiple Packages - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com Broken Link
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Broken Link
[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:20 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
USN-864-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com Broken Link
Bug 529626 – CVE-2009-3621 kernel: AF_UNIX: Fix deadlock on connecting to shutdown socket af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Exploit, Issue Tracking, Third Party Advisory
oss-security - Re: CVE request: kernel: AF_UNIX: Fix deadlock on connecting to shutdown socket af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Exploit, Mailing List, Patch, Third Party Advisory
SUSE update for kernel - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
AF_UNIX: Fix deadlock on connecting to shutdown socket - Patchwork af854a3a-2127-422b-91ae-364da2661108 patchwork.kernel.org Exploit, Mailing List, Third Party Advisory
[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:20 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
git.kernel.org af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
Support / Security / Advisories / / MDVSA-2009:329 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com Broken Link
[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:20 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[Security-announce] VMSA-2010-0004 ESX Service Console and vMA third party updates af854a3a-2127-422b-91ae-364da2661108 lists.vmware.com Mailing List, Third Party Advisory
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
VMware ESX Server 4 Multiple Vulnerabilities - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
LKML: Tomoki Sekiyama: Re: [PATCH] AF_UNIX: Fix deadlock on connecting to shutdown socket af854a3a-2127-422b-91ae-364da2661108 lkml.org Mailing List, Third Party Advisory
oss-security - CVE request: kernel: AF_UNIX: Fix deadlock on connecting to shutdown socket af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Exploit, Mailing List, Patch, Third Party Advisory
Linux Kernel Multiple Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:20 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[SECURITY] Fedora 10 Update: kernel-2.6.27.38-170.2.113.fc10 af854a3a-2127-422b-91ae-364da2661108 www.redhat.com Mailing List, Third Party Advisory
[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:20 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
CONFIRM:http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git;a=commit;h=77238f2b942b38ab4e7f3aced44084493e4a8675 MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2009-12-17Tomas HogerRed Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2009-3621 This issue has been rated as having moderate security impact. It was addressed in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG via: https://rhn.redhat.com/errata/RHSA-2009-1671.html , https://rhn.redhat.com/errata/RHSA-2009-1670.html and https://rhn.redhat.com/errata/RHSA-2009-1540.html respectively. This issue is not planned to be fixed in Red Hat Enterprise Linux 3, due to this product being in Production 3 of its maintenance life-cycle, where only qualified security errata of important or critical impact are addressed. For further information about Errata Support Policy, visit: http://www.redhat.com/security/updates/errata/
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