Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.6.31.4 |
| Canonical | Ubuntu Linux | 6.06 |
| Fedoraproject | Fedora | 10 |
| Opensuse | Opensuse | 11.0 |
| Suse | Suse Linux Enterprise Desktop | 10 |
| Suse | Suse Linux Enterprise Server | 10 |
| Vmware | Vma | 4.0 |
| Vmware | Esx | 4.0 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=77238
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.htmlMailing ListThird Party Advisory
- http://lists.vmware.com/pipermail/security-announce/2010/000082.htmlMailing ListThird Party Advisory
- http://lkml.org/lkml/2009/10/19/50Mailing ListThird Party Advisory
- http://patchwork.kernel.org/patch/54678/ExploitMailing ListThird Party Advisory
- http://secunia.com/advisories/37086Broken Link
- http://secunia.com/advisories/37909Broken Link
- http://secunia.com/advisories/38017Broken Link
- http://secunia.com/advisories/38794Broken Link
- http://secunia.com/advisories/38834Broken Link
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:329Broken Link
FAQ
What is CVE-2009-3621?
CVE-2009-3621 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 shutd...
How severe is CVE-2009-3621?
CVE-2009-3621 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-3621?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux, Fedoraproject Fedora, Opensuse Opensuse, Suse Suse Linux Enterprise Desktop.