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CVE-2018-19965

Published: Dec 8, 2018Updated: Nov 21, 2024 Sources: CVE List NVD BDUNVD-CWE-noinfo
NVD MITRE
5.6CVSSMEDIUM
EPSS Score
0.4%
Top 67.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:CC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

n/an/a
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
XenThe Linux Foundation
On-prem
Cloud & SaaS / virtualization
xenxen
On-prem
Cloud & SaaS / virtualization
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
the linux foundationoss-projectUSCloud & SaaSaka linuxfoundation.org, linux foundation
xenoss-projectGBCloud & SaaSaka xapi, qemu
and 2 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

https://support.citrix.com/article/CTX239432
support.citrix.com
https://xenbits.xen.org/xsa/advisory-279.html
xenbits.xen.org
https://www.debian.org/security/2019/dsa-4369
debian.org
and 7 more references View all →

Timeline

Published
Dec 8, 2018
Last Updated
Nov 21, 2024

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