Vulnerability Description
The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5.7 does not ensure that a keepalive action is associated with a stream socket, which allows local users to cause a denial of service (system crash) by leveraging the ability to create a raw socket.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 3.5.6 |
| Novell | Suse Linux Enterprise Server | 10.0 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://marc.info/?l=bugtraq&m=142722450701342&w=2
- http://marc.info/?l=bugtraq&m=142722544401658&w=2
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.7Vendor Advisory
- http://www.openwall.com/lists/oss-security/2014/09/15/8
- https://bugzilla.redhat.com/show_bug.cgi?id=1141742
- https://github.com/torvalds/linux/commit/3e10986d1d698140747fcfc2761ec9cb64c1d58Exploit
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://marc.info/?l=bugtraq&m=142722450701342&w=2
- http://marc.info/?l=bugtraq&m=142722544401658&w=2
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.7Vendor Advisory
FAQ
What is CVE-2012-6657?
CVE-2012-6657 is a vulnerability with a CVSS score of 4.9 (MEDIUM). The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5.7 does not ensure that a keepalive action is associated with a stream socket, which allows local users to cause a denial ...
How severe is CVE-2012-6657?
CVE-2012-6657 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-6657?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Novell Suse Linux Enterprise Server.