CVE-2016-8630
Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 28 Nov 2016, 03:01
Last modified:06 Aug 2024, 02:27
Vulnerability Summary
Overall Risk (default)
low
22/100 CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.03% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
28 Nov 2016, 03:01
Published
Vulnerability first disclosed
06 Aug 2024, 02:27
Last Modified
Vulnerability information updated
Description
The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.
CVSS Metrics
- v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 0.03%• Percentile: 9%
Techniques & Countermeasures
- CWE-284•Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
- CWE-476•NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Systems
- linux•linux_kernel
≤ 4.8.6
References (8)
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7
- http://www.securityfocus.com/bid/94459
- https://bugzilla.redhat.com/show_bug.cgi?id=1393350
- http://rhn.redhat.com/errata/RHSA-2017-0387.html
- https://github.com/torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937e
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e85937e
- http://www.openwall.com/lists/oss-security/2016/11/22/3
- http://rhn.redhat.com/errata/RHSA-2017-0386.html