CVE-2016-9777
KVM Linux Kernel Arbitrary VCPU Index Vulnerability
Description
KVM in the Linux kernel before 4.8.12, when I/O APIC is enabled, does not properly restrict the VCPU index, which allows guest OS users to gain host OS privileges or cause a denial of service (out-of-bounds array access and host OS crash) via a crafted interrupt request, related to arch/x86/kvm/ioapic.c and arch/x86/kvm/ioapic.h.
INFO
Published Date :
Dec. 28, 2016, 7:59 a.m.
Last Modified :
May 16, 2023, 11:09 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.1
Public PoC/Exploit Available at Github
CVE-2016-9777 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-9777.
| URL | Resource |
|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 | Patch Vendor Advisory |
| http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12 | Release Notes |
| http://www.openwall.com/lists/oss-security/2016/12/02/2 | Mailing List Patch |
| http://www.securityfocus.com/bid/94640 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1400804 | Issue Tracking |
| https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 | Patch Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-9777 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-9777 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
May. 16, 2023
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Changed Reference Type http://www.securityfocus.com/bid/94640 No Types Assigned http://www.securityfocus.com/bid/94640 Third Party Advisory, VDB Entry Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.8.11 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.8 up to (excluding) 4.8.12 -
CVE Modified by [email protected]
Dec. 31, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/94640 [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 28, 2016
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:M/Au:N/C:C/I:C/A:C) Added CVSS V3 AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2016/12/02/2 No Types Assigned http://www.openwall.com/lists/oss-security/2016/12/02/2 Mailing List, Patch Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 Vendor Advisory, Patch Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1400804 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1400804 Issue Tracking Changed Reference Type http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12 No Types Assigned http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12 Release Notes Changed Reference Type https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 No Types Assigned https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 Vendor Advisory, Patch Added CWE CWE-125 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:4.8.11:*:*:*:*:*:*:* (and previous)
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-9777 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-9777
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.24592
percentile