Vulnerability Description
The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUF or (2) SO_RCVBUF option.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.2.85 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=829819PatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2016/12/03/1Mailing ListThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/95135Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1402024Issue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/82981930125abfd39d7c8378a9cfdf5e1be2002PatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=829819PatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2016/12/03/1Mailing ListThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/95135Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1402024Issue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/82981930125abfd39d7c8378a9cfdf5e1be2002PatchThird Party Advisory
FAQ
What is CVE-2012-6704?
CVE-2012-6704 is a vulnerability with a CVSS score of 7.8 (HIGH). The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corr...
How severe is CVE-2012-6704?
CVE-2012-6704 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-6704?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.