CVE-2009-3621

medium

Description

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.

References

Advisories
More

https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00190.html

https://rhn.redhat.com/errata/RHSA-2009-1540.html

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9921

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6895

http://www.ubuntu.com/usn/usn-864-1

http://lkml.org/lkml/2009/10/19/50

http://lists.vmware.com/pipermail/security-announce/2010/000082.html

http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html

http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html

http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=77238f2b942b38ab4e7f3aced44084493e4a8675

Details

Source: Mitre, NVD

Published: 2009-10-22

Updated: 2025-04-09

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00045