CVE-2016-3157
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2016-3157
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2016-3157.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2016-3157
- Downstream
- Published
- 2016-04-12T16:59:02Z
- Modified
- 2025-08-09T20:01:28Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The _switchto 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.
- References
-
- http://www.debian.org/security/2016/dsa-3607
- http://www.ubuntu.com/usn/USN-2968-1
- http://www.ubuntu.com/usn/USN-2968-2
- http://www.ubuntu.com/usn/USN-2969-1
- http://www.ubuntu.com/usn/USN-2970-1
- http://www.ubuntu.com/usn/USN-2971-1
- http://www.ubuntu.com/usn/USN-2971-2
- http://www.ubuntu.com/usn/USN-2971-3
- http://www.ubuntu.com/usn/USN-2996-1
- http://www.ubuntu.com/usn/USN-2997-1
- http://xenbits.xen.org/xsa/advisory-171.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/84594
- http://www.securitytracker.com/id/1035308