DEBIAN-CVE-2022-42309

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2022-42309
Downstream
DSA-5272-1
Published: 01 Nov 2022, 13:15
Last modified:28 Apr 2026, 20:24

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Nov 2022, 13:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:24
Last Modified
Vulnerability information updated

Description

Xenstore: Guests can crash xenstored Due to a bug in the fix of XSA-115 a malicious guest can cause xenstored to use a wrong pointer during node creation in an error path, resulting in a crash of xenstored or a memory corruption in xenstored causing further damage. Entering the error path can be controlled by the guest e.g. by exceeding the quota value of maximum nodes per domain.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Systems

  • debian•xen

    < 4.14.5+86-g1c354767d5-1 | < 4.16.2+90-g0d39a6d1ae-1 | < 4.16.2+90-g0d39a6d1ae-1 | < 4.16.2+90-g0d39a6d1ae-1

References (1)