CVE-2017-1000111

CVE Details

Release Date:	2017-08-10
Impact:	Important	What is this?

Description

Linux kernel: heap out-of-bounds in AF_PACKET sockets. This new issueis analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packet_set_ring. Previously with PACKET_VERSION. This time with PACKET_RESERVE. The solution is similar: lock the socket for the update. This issue may be exploitable, we did not investigate further. As this issue affects PF_PACKET sockets, it requires CAP_NET_RAW in the process namespace. But note that with user namespaces enabled, any process can create a namespace in which it has CAP_NET_RAW.

See more information about CVE-2017-1000111 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	7.2
Vector String:	AV:L/AC:L/Au:N/C:C/I:C/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2017-3633	2017-10-24
Oracle Linux version 6 (dtrace-modules-3.8.13-118.19.10.el6uek)	ELSA-2017-3632	2017-10-24
Oracle Linux version 6 (kernel)	ELSA-2017-3200	2017-11-15
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3632	2017-10-24
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3633	2017-10-24
Oracle Linux version 7 (dtrace-modules-3.8.13-118.19.10.el7uek)	ELSA-2017-3632	2017-10-24
Oracle Linux version 7 (kernel)	ELSA-2017-2930	2017-10-19
Oracle Linux version 7 (kernel)	ELSA-2017-2930-1	2017-10-20
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3632	2017-10-24
Oracle VM version 3.3 (kernel-uek)	OVMSA-2017-0164	2017-10-26