CVE-2019-17346

xen: xsa292: insufficient TLB flushing when using PCID

Published Oct 8, 2019 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-4602-1 xen security update
EUVD EUVD EUVD-2019-7757 An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00193}

epss

{'score': 0.00177}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 5, 2024, 1:40 AM
Reserved
Oct 7, 2019, 12:00 AM
Status
Modified
Published
Oct 8, 2019, 1:15 AM
Modified
Jun 17, 2026, 2:23 AM
Severity
Moderate
Public date
Mar 5, 2019, 12:00 AM