CVE catalog

CVE-2022-42327

xen: CVE-2022-42327

Severity: Low · CVSS 2.5CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N
Published: Nov 1, 2022, 11:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.24% · Oct 25, 2026

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist between two guests.

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]