CVE-2019-17348 — Improper Input Validation in XEN

CWE-20 — Improper Input ValidationCWE-400 — Uncontrolled Resource Consumption6 documents6 sources
Severity
6.5MEDIUMNVD
EPSS
0.2%
top 59.13%
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 because of an incompatibility between Process Context Identifiers (PCID) and shadow-pagetable switching.

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 ↗Patch: xenbits.xen.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-q6r9-f65g-rcx6: An issue was discovered in Xen through 4↗2022-05-24
▶
OSV
CVE-2019-17348: An issue was discovered in Xen through 4↗2019-10-08
▶

📋Vendor Advisories

2
Red Hat
xen: xsa294: Insufficient TLB flushing when using PCID↗2019-03-05
▶
Debian
CVE-2019-17348: xen - An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to ...↗2019
▶

💬Community

1
Bugzilla
CVE-2019-17348 xen: xsa294: Insufficient TLB flushing when using PCID↗2019-02-28
▶