CVE catalog

CVE-2024-45818

xen: CVE-2024-45818

Severity: Medium · CVSS 6.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Published: Nov 11, 2024, 11:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.27% · Oct 25, 2026

The hypervisor contains code to accelerate VGA memory accesses for HVM guests, when the (virtual) VGA is in "standard" mode. Locking involved there has an unusual discipline, leaving a lock acquired past the return from the function that acquired it. This behavior results in a problem when emulating an instruction with two memory accesses, both of which touch VGA memory (plus some further constraints which aren't relevant here). When emulating the 2nd access, the lock that is already being held would be attempted to be re-acquired, resulting in a deadlock. This deadlock was already found when the code was first introduced, but was analysed incorrectly and the fix was incomplete. Analysis in light of the new finding cannot find a way to make the existing locking discipline work. In staging, this logic has all been removed because it was discovered to be accidentally disabled since Xen 4.7. Therefore, we are fixing the locking problem by backporting the removal of most of the feature. Note that even with the feature disabled, the lock would still be acquired for any accesses to the VGA MMIO region.

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
Alpine	xen	3.17	`4.16.6-r3`	fixed
Alpine	xen	3.18	`4.17.5-r2`	fixed
Alpine	xen	3.19	`4.18.3-r2`	fixed
Alpine	xen	3.20	`4.18.3-r2`	fixed
Alpine	xen	3.21	`4.19.0-r1`	fixed
Alpine	xen	3.22	`4.19.0-r1`	fixed
Alpine	xen	3.23	`4.19.0-r1`	fixed
Alpine	xen	3.24	`4.19.0-r1`	fixed
Opensuse	xen	tumbleweed	`4.19.0_06-1.1`	fixed
Suse	xen	linux enterprise server 12 sp5-ltss	`4.12.4_58-3.124.1`	fixed
Suse	xen	linux enterprise server ltss extended security 12 sp5	`4.12.4_58-3.124.1`	fixed
Suse	xen	linux enterprise high performance computing 15 sp3-ltss	`4.14.6_22-150300.3.84.1`	fixed
Suse	xen	linux enterprise server 15 sp3-ltss	`4.14.6_22-150300.3.84.1`	fixed
Suse	xen	linux enterprise server for sap applications 15 sp3	`4.14.6_22-150300.3.84.1`	fixed
Suse	xen	linux enterprise micro 5.1	`4.14.6_22-150300.3.84.1`	fixed
Suse	xen	linux enterprise micro 5.2	`4.14.6_22-150300.3.84.1`	fixed
Suse	xen	enterprise storage 7.1	`4.14.6_22-150300.3.84.1`	fixed
Suse	xen	linux enterprise micro 5.3	`4.16.6_06-150400.4.65.1`	fixed
Suse	xen	linux enterprise micro 5.4	`4.16.6_06-150400.4.65.1`	fixed
Suse	xen	linux enterprise high performance computing 15 sp4-espos	`4.16.6_06-150400.4.65.1`	fixed
Suse	xen	linux enterprise high performance computing 15 sp4-ltss	`4.16.6_06-150400.4.65.1`	fixed
Suse	xen	linux enterprise server 15 sp4-ltss	`4.16.6_06-150400.4.65.1`	fixed
Suse	xen	linux enterprise server for sap applications 15 sp4	`4.16.6_06-150400.4.65.1`	fixed
Suse	xen	manager proxy 4.3	`4.16.6_06-150400.4.65.1`	fixed
Suse	xen	manager server 4.3	`4.16.6_06-150400.4.65.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	xen	source	sid	`4.19.1-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	forky	`4.19.1-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	trixie	`4.19.1-1`	not yet assigned	Not reported	Not reported
Debian	xen	source	bookworm	`4.17.5+23-ga4e5191dc0-1`	not yet assigned	Not reported	Not reported
Alpine	xen	apk	3.17	`4.16.6-r3`	Not reported	ALPINE-CVE-2024-45818	Not reported
Alpine	xen	apk	3.18	`4.17.5-r2`	Not reported	ALPINE-CVE-2024-45818	Not reported
Alpine	xen	apk	3.19	`4.18.3-r2`	Not reported	ALPINE-CVE-2024-45818	Not reported
Alpine	xen	apk	3.20	`4.18.3-r2`	Not reported	ALPINE-CVE-2024-45818	Not reported
Alpine	xen	apk	3.21	`4.19.0-r1`	Not reported	ALPINE-CVE-2024-45818	Not reported
Alpine	xen	apk	3.22	`4.19.0-r1`	Not reported	ALPINE-CVE-2024-45818	Not reported
Alpine	xen	apk	3.23	`4.19.0-r1`	Not reported	ALPINE-CVE-2024-45818	Not reported
Alpine	xen	apk	3.24	`4.19.0-r1`	Not reported	ALPINE-CVE-2024-45818	Not reported
Opensuse	xen	rpm	tumbleweed	`4.19.0_06-1.1`	Not reported	OPENSUSE-SU-2024:14530-1	Not reported
Suse	xen	rpm	linux enterprise server 12 sp5-ltss	`4.12.4_58-3.124.1`	Not reported	SUSE-SU-2024:3979-1	Not reported
Suse	xen	rpm	linux enterprise server ltss extended security 12 sp5	`4.12.4_58-3.124.1`	Not reported	SUSE-SU-2024:3979-1	Not reported
Suse	xen	rpm	linux enterprise high performance computing 15 sp3-ltss	`4.14.6_22-150300.3.84.1`	Not reported	SUSE-SU-2024:3977-1	Not reported
Suse	xen	rpm	linux enterprise server 15 sp3-ltss	`4.14.6_22-150300.3.84.1`	Not reported	SUSE-SU-2024:3977-1	Not reported
Suse	xen	rpm	linux enterprise server for sap applications 15 sp3	`4.14.6_22-150300.3.84.1`	Not reported	SUSE-SU-2024:3977-1	Not reported
Suse	xen	rpm	linux enterprise micro 5.1	`4.14.6_22-150300.3.84.1`	Not reported	SUSE-SU-2024:3977-1	Not reported
Suse	xen	rpm	linux enterprise micro 5.2	`4.14.6_22-150300.3.84.1`	Not reported	SUSE-SU-2024:3977-1	Not reported
Suse	xen	rpm	enterprise storage 7.1	`4.14.6_22-150300.3.84.1`	Not reported	SUSE-SU-2024:3977-1	Not reported
Suse	xen	rpm	linux enterprise micro 5.3	`4.16.6_06-150400.4.65.1`	Not reported	SUSE-SU-2024:4116-1	Not reported
Suse	xen	rpm	linux enterprise micro 5.4	`4.16.6_06-150400.4.65.1`	Not reported	SUSE-SU-2024:4116-1	Not reported
Suse	xen	rpm	linux enterprise high performance computing 15 sp4-espos	`4.16.6_06-150400.4.65.1`	Not reported	SUSE-SU-2024:4116-1	Not reported
Suse	xen	rpm	linux enterprise high performance computing 15 sp4-ltss	`4.16.6_06-150400.4.65.1`	Not reported	SUSE-SU-2024:4116-1	Not reported
Suse	xen	rpm	linux enterprise server 15 sp4-ltss	`4.16.6_06-150400.4.65.1`	Not reported	SUSE-SU-2024:4116-1	Not reported
Suse	xen	rpm	linux enterprise server for sap applications 15 sp4	`4.16.6_06-150400.4.65.1`	Not reported	SUSE-SU-2024:4116-1	Not reported
Suse	xen	rpm	manager proxy 4.3	`4.16.6_06-150400.4.65.1`	Not reported	SUSE-SU-2024:4116-1	Not reported
Suse	xen	rpm	manager server 4.3	`4.16.6_06-150400.4.65.1`	Not reported	SUSE-SU-2024:4116-1	Not reported

OpenFactory catalog packages

[openSUSE Tumbleweed]

[xen-devel]Unknown
Source package: [xen]
Details (1)
- 4.22.0_02-2.1 · x86_64 · tumbleweed
  Unknown · Fixed: 4.19.0_06-1.1
  Version impact unknown
  dsa · xen · opensuse · tumbleweed
[xen-doc-html]Unknown
Source package: [xen]
Details (1)
- 4.22.0_02-2.1 · x86_64 · tumbleweed
  Unknown · Fixed: 4.19.0_06-1.1
  Version impact unknown
  dsa · xen · opensuse · tumbleweed
[xen-libs]Unknown
Source package: [xen]
Details (1)
- 4.22.0_02-2.1 · x86_64 · tumbleweed
  Unknown · Fixed: 4.19.0_06-1.1
  Version impact unknown
  dsa · xen · opensuse · tumbleweed
[xen-tools]Unknown
Source package: [xen]
Details (1)
- 4.22.0_02-2.1 · x86_64 · tumbleweed
  Unknown · Fixed: 4.19.0_06-1.1
  Version impact unknown
  dsa · xen · opensuse · tumbleweed
[xen-tools-domU]Unknown
Source package: [xen]
Details (1)
- 4.22.0_02-2.1 · x86_64 · tumbleweed
  Unknown · Fixed: 4.19.0_06-1.1
  Version impact unknown
  dsa · xen · opensuse · tumbleweed
[xen-tools-xendomains-wait-disk]Unknown
Source package: [xen]
Details (1)
- 4.22.0_02-2.1 · noarch · tumbleweed
  Unknown · Fixed: 4.19.0_06-1.1
  Version impact unknown
  dsa · xen · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[libxencall1]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxen-dev]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxendevicemodel1]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxenevtchn1]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxenforeignmemory1]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxengnttab1]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxenhypfs1]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxenmisc4.17]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxenstore4]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxentoolcore1]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[libxentoollog1]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[xen-doc]Fixed
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[xen-hypervisor-4.17-amd64]Fixed
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
[xen-hypervisor-4.17-amd64-dbg]Fixed
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Fixed · Fixed: 4.17.5+23-ga4e5191dc0-1
  dsa · xen · debian · bookworm; dsa · xen · debian · 12

Next results

Observed: Oct 27, 2026, 6:49:06 PM UTC

References

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