CVE catalog

CVE-2022-33745

xen: CVE-2022-33745

Severity: High · CVSS 7.5CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Published: Jul 27, 2022, 8:01:31 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.30% · Oct 25, 2026

insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.

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	`4.16.2-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	forky	`4.16.2-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	trixie	`4.16.2-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	bookworm	`4.16.2-1`	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: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxen-dev]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxendevicemodel1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxenevtchn1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxenforeignmemory1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxengnttab1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxenhypfs1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxenmisc4.17]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxenstore4]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxentoolcore1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[libxentoollog1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[xen-doc]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  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: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  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: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  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: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  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: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[xen-hypervisor-common]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[xenstore-utils]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[xen-system-amd64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
[xen-system-arm64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.16.2-1
  dsa · xen · debian · bookworm

Next results

Observed: Oct 23, 2026, 6:27:55 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]