CVE-2016-3157 | BDVDB-2026-75165 Detail
Description#
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- http://www.ubuntu.com/usn/USN-2971-2
- http://xenbits.xen.org/xsa/advisory-171.html
- http://www.ubuntu.com/usn/USN-2970-1
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.ubuntu.com/usn/USN-2969-1
- http://www.ubuntu.com/usn/USN-2968-1
- http://www.ubuntu.com/usn/USN-2971-3
- http://www.ubuntu.com/usn/USN-2997-1
- http://www.debian.org/security/2016/dsa-3607
- http://www.ubuntu.com/usn/USN-2971-1
- http://www.ubuntu.com/usn/USN-2996-1
- http://www.ubuntu.com/usn/USN-2968-2
- http://www.securitytracker.com/id/1035308
- http://www.securityfocus.com/bid/84594
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.