CVE-2019-17344 — Improper Synchronization in XEN

CWE-662 — Improper SynchronizationCWE-400 — Uncontrolled Resource ConsumptionCWE-20 — Improper Input Validation6 documents6 sources
Severity
6.5MEDIUMNVD
EPSS
0.1%
top 64.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
XENDebian XENDebian Linux
Timeline
PublishedOct 8
Latest updateMay 24

Description

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HExploitability: 2.0 | Impact: 4.0

Affected Packages3 packages

▶debiandebian/xen< xen 4.11.1+92-g6c33308a8d-1 (bookworm)
▶Debianxen/xen< 4.11.1+92-g6c33308a8d-1+3
▶NVDxen/xen4.11.2

Also affects: Debian Linux 10.0, 9.0

Patches

Patch: xenbits.xen.org ↗Patch: xenbits.xen.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-q4jv-8wfr-4pf8: An issue was discovered in Xen through 4↗2022-05-24
▶
OSV
CVE-2019-17344: An issue was discovered in Xen through 4↗2019-10-08
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📋Vendor Advisories

2
Red Hat
xen: xsa290: missing preemption in x86 PV page table unvalidation↗2019-03-05
▶
Debian
CVE-2019-17344: xen - An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to ...↗2019
▶

💬Community

1
Bugzilla
CVE-2019-17344 xen: xsa290: missing preemption in x86 PV page table unvalidation↗2019-02-20
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