CVE-2009-3621

moderate-risk
Published 2009-10-22

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.

Do I need to act?

-
0.07% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
!
1 public exploit available
10022
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (15)

Vma
Esx

Affected Vendors

Canonical Opensuse Fedoraproject Suse Linux Vmware

References (52)

http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=77238...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
Mailing List http://lists.vmware.com/pipermail/security-announce/2010/000082.html
Mailing List http://lkml.org/lkml/2009/10/19/50
Exploit http://patchwork.kernel.org/patch/54678/
Broken Link 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
Exploit http://www.openwall.com/lists/oss-security/2009/10/19/2
Exploit http://www.openwall.com/lists/oss-security/2009/10/19/4
Broken Link http://www.redhat.com/support/errata/RHSA-2009-1670.html
Broken Link http://www.redhat.com/support/errata/RHSA-2009-1671.html
Third Party Advisory http://www.ubuntu.com/usn/usn-864-1
and 32 more references
43
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 7/34 · Low
Exposure 18/34 · Moderate