CVE-2018-16882
"KVM Linux Nested Virtualization Use-After-Free Vulnerability"
Description
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before 4.14.91 and before 4.19.13 are vulnerable.
INFO
Published Date :
Jan. 3, 2019, 4:29 p.m.
Last Modified :
Nov. 21, 2024, 3:53 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
2.0
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-2018-16882.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-16882 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-16882 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]
Jan. 19, 2023
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.14.91 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.19.13 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14 up to (excluding) 4.14.91 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.13 -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Red Hat, Inc. AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:H Added CWE Red Hat, Inc. CWE-416 -
Modified Analysis by [email protected]
Apr. 23, 2019
Action Type Old Value New Value Changed Reference Type https://support.f5.com/csp/article/K80557033 No Types Assigned https://support.f5.com/csp/article/K80557033 Third Party Advisory -
CVE Modified by [email protected]
Apr. 22, 2019
Action Type Old Value New Value Added Reference https://support.f5.com/csp/article/K80557033 [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 05, 2019
Action Type Old Value New Value Changed CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P) (AV:L/AC:L/Au:N/C:C/I:C/A:C) Changed CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://usn.ubuntu.com/3878-2/ No Types Assigned https://usn.ubuntu.com/3878-2/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3878-1/ No Types Assigned https://usn.ubuntu.com/3878-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3871-3/ No Types Assigned https://usn.ubuntu.com/3871-3/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3871-4/ No Types Assigned https://usn.ubuntu.com/3871-4/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3871-5/ No Types Assigned https://usn.ubuntu.com/3871-5/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3871-1/ No Types Assigned https://usn.ubuntu.com/3871-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3872-1/ No Types Assigned https://usn.ubuntu.com/3872-1/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 09, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3878-2/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3871-5/ [No Types Assigned] -
CVE Modified by [email protected]
Feb. 05, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3878-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3871-4/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3871-3/ [No Types Assigned] -
CVE Modified by [email protected]
Jan. 30, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3872-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3871-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 29, 2019
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.securityfocus.com/bid/106254 No Types Assigned http://www.securityfocus.com/bid/106254 Third Party Advisory, VDB Entry Changed Reference Type https://marc.info/?l=kvm&m=154514994222809&w=2 No Types Assigned https://marc.info/?l=kvm&m=154514994222809&w=2 Patch, Third Party Advisory Changed Reference Type https://lwn.net/Articles/775720/ No Types Assigned https://lwn.net/Articles/775720/ Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16882 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16882 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://lwn.net/Articles/775721/ No Types Assigned https://lwn.net/Articles/775721/ Third Party Advisory Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.14.91 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.19.13 -
CVE Modified by [email protected]
Jan. 04, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/106254 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-16882 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-2018-16882
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.02%
score
0.26551
percentile