SB2016122809 - Out-of-bounds read in Linux kernel x86 kvm
Published: December 28, 2016
Security Bulletin ID
SB2016122809
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2016-9777)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an out-of-bounds read error within the ioapic_read_indirect() function in arch/x86/kvm/ioapic.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755
- https://bugzilla.redhat.com/show_bug.cgi?id=1400804
- http://www.openwall.com/lists/oss-security/2016/12/02/2
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755
- http://www.securityfocus.com/bid/94640