CVE-2022-42330 — XEN vulnerability

4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.3%
top 47.38%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
XENDebian XEN
Timeline
PublishedJan 26

Description

Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/xen< xen 4.17.0+24-g2f8851c37f-2 (bookworm)
▶Debianxen/xen< 4.17.0+24-g2f8851c37f-2+2
▶NVDxen/xen4.17.0

🔴Vulnerability Details

2
GHSA
GHSA-jvpr-73pr-x7v5: Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e↗2023-01-26
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OSV
CVE-2022-42330: Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e↗2023-01-26
▶

📋Vendor Advisories

1
Debian
CVE-2022-42330: xen - Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset...↗2022
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