CVE-2018-19965
Xen 64-bit PV Guest OS TLB Flushing Denial of Service
Description
An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.
INFO
Published Date :
Dec. 8, 2018, 4:29 a.m.
Last Modified :
Nov. 7, 2023, 2:55 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
1.1
Public PoC/Exploit Available at Github
CVE-2018-19965 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2018-19965
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2018-19965.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html | |
| http://www.securityfocus.com/bid/106182 | Third Party Advisory VDB Entry |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ | |
| https://support.citrix.com/article/CTX239432 | Patch Third Party Advisory |
| https://www.debian.org/security/2019/dsa-4369 | Third Party Advisory |
| https://xenbits.xen.org/xsa/advisory-279.html | Mitigation 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).
Architecture internals learning path from Open Security Training, provides a set of resources to complete the learning path, includes code-base, videos, techniques, useful articles and concepts to understand the courses.
c opensecurity mmu reverse-engineering rootkit-hunter rootkit-kernel tlb
C Assembly
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-19965 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-19965 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-171 CWE-20 CWE-264 NVD-CWE-noinfo -
CVE Modified by [email protected]
Apr. 17, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html [No Types Assigned] -
CVE Modified by [email protected]
Mar. 21, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 21, 2019
Action Type Old Value New Value Changed Reference Type https://www.debian.org/security/2019/dsa-4369 No Types Assigned https://www.debian.org/security/2019/dsa-4369 Third Party Advisory Changed Reference Type https://support.citrix.com/article/CTX239432 No Types Assigned https://support.citrix.com/article/CTX239432 Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:* *cpe:2.3:a:citrix:xenserver:7.1:cu1:*:*:ltsr:*:*:* *cpe:2.3:a:citrix:xenserver:7.5:*:*:*:*:*:*:* *cpe:2.3:a:citrix:xenserver:7.6:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 15, 2019
Action Type Old Value New Value Added Reference https://www.debian.org/security/2019/dsa-4369 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 10, 2019
Action Type Old Value New Value Added Reference https://support.citrix.com/article/CTX239432 [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 03, 2019
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:M/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H Changed Reference Type https://xenbits.xen.org/xsa/advisory-279.html No Types Assigned https://xenbits.xen.org/xsa/advisory-279.html Mitigation, Patch, Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/106182 No Types Assigned http://www.securityfocus.com/bid/106182 Third Party Advisory, VDB Entry Added CWE CWE-171 Added CPE Configuration OR *cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to (including) 4.11.1 -
CVE Modified by [email protected]
Dec. 13, 2018
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/106182 [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-2018-19965 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-2018-19965
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
0.24843
percentile