CVE catalog

CVE-2018-5244

xen: CVE-2018-5244

Severity: Medium · CVSS 4CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published: Jan 5, 2018, 6:29:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.37% · Oct 25, 2026

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.

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`	not affected
Debian	xen	forky	`4.20.4+39-gf1e1321c87-1`	not affected
Debian	xen	trixie	`4.20.3+127-gc42374a105-0+deb13u1`	not affected
Debian	xen	trixie-security	`4.20.4+39-gf1e1321c87-0+deb13u1`	not affected
Debian	xen	bookworm	`4.17.5+72-g01140da4e8-1`	not affected
Debian	xen	bookworm-security	`4.17.7-0+deb12u1`	not affected
Alpine	xen	3.15	`4.10.0-r1`	fixed
Alpine	xen	3.16	`4.10.0-r1`	fixed
Alpine	xen	3.17	`4.10.0-r1`	fixed
Alpine	xen	3.18	`4.10.0-r1`	fixed
Alpine	xen	3.19	`4.10.0-r1`	fixed
Alpine	xen	3.20	`4.10.0-r1`	fixed
Alpine	xen	3.21	`4.10.0-r1`	fixed
Alpine	xen	3.22	`4.10.0-r1`	fixed
Alpine	xen	3.23	`4.10.0-r1`	fixed
Alpine	xen	3.24	`4.10.0-r1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	xen	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	xen	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	xen	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	xen	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Alpine	xen	apk	3.15	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.16	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.17	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.18	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.19	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.20	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.21	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.22	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.23	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	Not reported
Alpine	xen	apk	3.24	`4.10.0-r1`	Not reported	ALPINE-CVE-2018-5244	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
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxen-dev]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxendevicemodel1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxenevtchn1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxenforeignmemory1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxengnttab1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxenhypfs1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxenmisc4.17]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxenstore4]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxentoolcore1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[libxentoollog1]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xen-doc]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xen-hypervisor-4.17-amd64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xen-hypervisor-4.17-amd64-dbg]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xen-hypervisor-4.17-arm64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xen-hypervisor-4.17-arm64-dbg]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xen-hypervisor-common]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xenstore-utils]Unknown
Source package: [xen]
Details (4)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xen-system-amd64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm
[xen-system-arm64]Unknown
Source package: [xen]
Details (2)
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm
  Not affected
  dsa · xen · debian · bookworm
- 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security
  Not affected
  dsa · xen · debian · bookworm

Next results

Observed: Oct 23, 2026, 5:37:15 PM UTC

References

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