Use-after-free in Linux kernel - CVE-2016-8655
Published: December 8, 2016 / Updated: June 3, 2024
Vulnerability identifier: #VU90824
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear
CVE-ID: CVE-2016-8655
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to a use-after-free error within the packet_setsockopt() and packet_set_ring() functions in net/packet/af_packet.c. A local user can execute arbitrary code.
How to mitigate CVE-2016-8655
Install update from vendor's website.
Sources
- https://bugzilla.redhat.com/show_bug.cgi?id=1400019
- http://www.openwall.com/lists/oss-security/2016/12/06/1
- https://github.com/torvalds/linux/commit/84ac7260236a49c79eede91617700174c2c19b0c
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=84ac7260236a49c79eede91617700174c2c19b0c
- http://www.securityfocus.com/bid/94692
- https://www.exploit-db.com/exploits/40871/
- http://www.securitytracker.com/id/1037403
- http://packetstormsecurity.com/files/140063/Linux-Kernel-4.4.0-AF_PACKET-Race-Condition-Privilege-Escalation.html
- http://www.ubuntu.com/usn/USN-3152-2
- http://www.ubuntu.com/usn/USN-3152-1
- http://www.ubuntu.com/usn/USN-3151-4
- http://www.ubuntu.com/usn/USN-3151-3
- http://www.ubuntu.com/usn/USN-3151-2
- http://www.ubuntu.com/usn/USN-3151-1
- http://www.ubuntu.com/usn/USN-3150-2
- http://www.ubuntu.com/usn/USN-3150-1
- http://www.ubuntu.com/usn/USN-3149-2
- http://www.ubuntu.com/usn/USN-3149-1
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00087.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00077.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00076.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00073.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00070.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00067.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00056.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00055.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00054.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00044.html
- https://source.android.com/security/bulletin/2017-03-01.html
- http://www.securitytracker.com/id/1037968
- http://rhn.redhat.com/errata/RHSA-2017-0402.html
- http://rhn.redhat.com/errata/RHSA-2017-0387.html
- http://rhn.redhat.com/errata/RHSA-2017-0386.html
- https://www.exploit-db.com/exploits/44696/