CVE-2009-3621
MEDIUM · CVSS 5.5EPSS 1.0%EU EUVD
net/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.
Key facts
- CVSS score
- 5.5 (v3.1)
- Severity
- MEDIUM
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
- CWE-400
- EPSS score
- 1.0% (63th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-3602)
- Published
- October 22, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-3602 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- fedoraproject / fedora
- linux / linux kernel
- opensuse / opensuse
- opensuse / opensuse
- suse / suse linux enterprise desktop
- suse / suse linux enterprise desktop
- suse / suse linux enterprise server
- suse / suse linux enterprise server
- vmware / esx
- vmware / vma
References
- http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=77238f2b942b38ab4e7f3aced44084493e4a8675
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html(Mailing List, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html(Mailing List, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html(Mailing List, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html(Mailing List, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html(Mailing List, Third Party Advisory)
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html(Mailing List, Third Party Advisory)
- http://lkml.org/lkml/2009/10/19/50(Mailing List, Third Party Advisory)
- http://patchwork.kernel.org/patch/54678/(Exploit, Mailing List, Third Party Advisory)
- http://secunia.com/advisories/37086(Broken Link)
- http://secunia.com/advisories/37909(Broken Link)
- http://secunia.com/advisories/38017(Broken Link)
- http://secunia.com/advisories/38794(Broken Link)
- http://secunia.com/advisories/38834(Broken Link)
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:329(Broken Link)
- http://www.openwall.com/lists/oss-security/2009/10/19/2(Exploit, Mailing List, Patch, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2009/10/19/4(Exploit, Mailing List, Patch, Third Party Advisory)
- http://www.redhat.com/support/errata/RHSA-2009-1670.html(Broken Link)
- http://www.redhat.com/support/errata/RHSA-2009-1671.html(Broken Link)
- http://www.ubuntu.com/usn/usn-864-1(Third Party Advisory)
- http://www.vupen.com/english/advisories/2010/0528(Broken Link)
- https://bugzilla.redhat.com/show_bug.cgi?id=529626(Exploit, Issue Tracking, Third Party Advisory)
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6895(Third Party Advisory)
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9921(Third Party Advisory)
- https://rhn.redhat.com/errata/RHSA-2009-1540.html(Third Party Advisory)
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00190.html(Mailing List, Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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