CVE catalog

CVE-2022-42316

xen: CVE-2022-42316

Severity: Medium · CVSS 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Published: Nov 1, 2022, 11:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.26% · Oct 25, 2026

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

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	xen	sid	`4.20.4+39-gf1e1321c87-1`	fixed
Debian	xen	forky	`4.20.4+39-gf1e1321c87-1`	fixed
Debian	xen	trixie	`4.20.3+127-gc42374a105-0+deb13u1`	fixed
Debian	xen	trixie-security	`4.20.4+39-gf1e1321c87-0+deb13u1`	fixed
Debian	xen	bookworm	`4.17.5+72-g01140da4e8-1`	fixed
Debian	xen	bookworm-security	`4.17.7-0+deb12u1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	xen	source	sid	`4.16.2+90-g0d39a6d1ae-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	forky	`4.16.2+90-g0d39a6d1ae-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	trixie	`4.16.2+90-g0d39a6d1ae-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	bookworm	`4.16.2+90-g0d39a6d1ae-1`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libxencall1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxen-dev]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxendevicemodel1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxenevtchn1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxenforeignmemory1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxengnttab1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxenhypfs1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxenmisc4.17]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxenstore4]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxentoolcore1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[libxentoollog1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xen-doc]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xen-hypervisor-4.17-amd64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xen-hypervisor-4.17-amd64-dbg]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xen-hypervisor-4.17-arm64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xen-hypervisor-4.17-arm64-dbg]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xen-hypervisor-common]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xenstore-utils]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xen-system-amd64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
[xen-system-arm64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1
  dsa · xen · debian · bookworm

Next results

Observed: Oct 23, 2026, 6:30:06 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [SUSE security advisories and VEX]