ALPINE-CVE-2022-42311

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2022-42311
Published: 01 Nov 2022, 13:15
Last modified:03 Dec 2025, 22:50

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
3.1 (osv_alpine)
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
03 Dec 2025, 22:50
Last Modified
Vulnerability information updated

Description

Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected Systems

  • alpine•xen

    < 4.15.4-r0 | < 4.15.4-r0 | < 4.16.3-r0 | < 4.16.3-r0 | < 4.17.0-r0 | < 4.17.0-r0 | < 4.17.0-r0 | < 4.17.0-r0 | < 4.17.0-r0 | < 4.17.0-r0

References (1)