SB2016122817 - Information exposure in Linux kernel x86 kvm
Published: December 28, 2016
Security Bulletin ID
SB2016122817
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information exposure (CVE-ID: CVE-2016-9756)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to information exposure error within the em_iret(), em_jmp_far() and em_ret_far() functions in arch/x86/kvm/emulate.c. A local user can gain access to sensitive information.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2117d5398c81554fbf803f5fd1dc55eb78216c0c
- http://lists.opensuse.org/opensuse-security-announce/2017-01/msg00000.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12
- http://www.openwall.com/lists/oss-security/2016/12/01/1
- http://www.securityfocus.com/bid/94615
- https://bugzilla.redhat.com/show_bug.cgi?id=1400468
- https://github.com/torvalds/linux/commit/2117d5398c81554fbf803f5fd1dc55eb78216c0c