Vulnerability Description
Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability to change a socket version, related to the packet_set_ring and packet_setsockopt functions.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.2, < 3.2.85 |
| Canonical | Ubuntu Linux | 12.04 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=84ac72PatchVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00044.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00054.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00055.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00056.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00067.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00070.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00073.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00076.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00077.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00087.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/140063/Linux-Kernel-4.4.0-AF_PACKET-Race-CoThird Party AdvisoryVDB Entry
- http://rhn.redhat.com/errata/RHSA-2017-0386.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0387.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0402.htmlThird Party Advisory
FAQ
What is CVE-2016-8655?
CVE-2016-8655 is a vulnerability with a CVSS score of 7.8 (HIGH). Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability...
How severe is CVE-2016-8655?
CVE-2016-8655 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-2016-8655?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux.