Is CVE-2018-19965 in the CISA KEV catalog?

No. CVE-2018-19965 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-19965?

CVE-2018-19965 has a CVSS v3 base score of 5.6 (MEDIUM).

What is the EPSS score for CVE-2018-19965?

CVE-2018-19965 has an EPSS score of 0.41% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-19965?

Upgrade xen on debian 11 to 4.11.1-1 or later.

CVE & CISA-KEV Catalog

CVE-2018-19965

MEDIUM

5.6

CVSS v3

NVD

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.

How to fix

Remediation Available

xenDebian

Fixed in:4.11.1-1CVE-2018-19965

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Patch2

Third-Party Advisory2

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.