CVE-2016-8655

Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 40.26% Top 5%
Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-3151-3 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00044.html vendor advisory mailing list third party advisory
https://github.com/torvalds/linux/commit/84ac7260236a49c79eede91617700174c2c19b0c third party advisory patch
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00077.html vendor advisory mailing list third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00067.html vendor advisory mailing list third party advisory
http://www.ubuntu.com/usn/USN-3150-2 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3149-2 third party advisory vendor advisory
http://www.securityfocus.com/bid/94692 third party advisory vdb entry
http://www.securitytracker.com/id/1037968 third party advisory vdb entry
http://www.ubuntu.com/usn/USN-3150-1 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00056.html vendor advisory mailing list third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00073.html vendor advisory mailing list third party advisory
http://rhn.redhat.com/errata/RHSA-2017-0402.html third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3151-1 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0387.html third party advisory vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=84ac7260236a49c79eede91617700174c2c19b0c patch vendor advisory
https://www.exploit-db.com/exploits/40871/ third party advisory vdb entry exploit
http://www.ubuntu.com/usn/USN-3149-1 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1400019 third party advisory vdb entry issue tracking
https://www.exploit-db.com/exploits/44696/ third party advisory vdb entry exploit
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00087.html vendor advisory mailing list third party advisory
http://www.ubuntu.com/usn/USN-3151-2 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00070.html vendor advisory mailing list third party advisory
http://packetstormsecurity.com/files/140063/Linux-Kernel-4.4.0-AF_PACKET-Race-Condition-Privilege-Escalation.html third party advisory vdb entry
http://www.openwall.com/lists/oss-security/2016/12/06/1 third party advisory mailing list
http://www.ubuntu.com/usn/USN-3152-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3152-2 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0386.html third party advisory vendor advisory
http://www.securitytracker.com/id/1037403 third party advisory vdb entry
http://www.ubuntu.com/usn/USN-3151-4 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00055.html vendor advisory mailing list third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00054.html vendor advisory mailing list third party advisory
https://source.android.com/security/bulletin/2017-03-01.html third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00076.html vendor advisory mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2016-8655?
CVE-2016-8655 has been scored as a high severity vulnerability.
How to fix CVE-2016-8655?
To fix CVE-2016-8655, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-8655 being actively exploited in the wild?
It is possible that CVE-2016-8655 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~40% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.