CVE-2019-7221

Name: CVE-2019-7221
Creator: NVD / NIST
Published: 2019-03-21T16:01:10.89+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.80%

Last modified Jun 17, 2026

CVE-2019-7221 is a vulnerability of currently unknown severity. The KVM implementation in the Linux kernel through 4.20.5 has a Use-after-Free.. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

The KVM implementation in the Linux kernel through 4.20.5 has a Use-after-Free.

Metrics

EPSS Probability

0.80%

52.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 4.20.5
Opensuse	Leap	15.0
Fedoraproject	Fedora	28
Fedoraproject	Fedora	29
Debian	Debian Linux	8.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10
Netapp	Active Iq Performance Analytics Services	All versions
Netapp	Element Software Management Node	All versions
Redhat	Openshift Container Platform	3.11
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	7.0

References

http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.htmlMailing List, Third Party Advisory
http://packetstormsecurity.com/files/151713/KVM-VMX-Preemption-Timer-Use-After-Free.htmlThird Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2019/02/18/2Mailing List, Patch, Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:0959Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0818Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0833Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3967
https://access.redhat.com/errata/RHSA-2019:4058
https://bugs.chromium.org/p/project-zero/issues/detail?id=1760Exploit, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ecec76885bcfe3294685dc363fd1273df0d5d65fMailing List, Patch, Vendor Advisory
https://github.com/torvalds/linux/commits/master/arch/x86/kvmThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KDOXCX3QFVWYXH5CQMGDDE7H6MUG5XGG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y2HMABEMJDPA6LPCBE5WIEZXUKY7DLTN/
https://security.netapp.com/advisory/ntap-20190404-0002/Third Party Advisory
https://support.f5.com/csp/article/K08413011
https://usn.ubuntu.com/3930-1/Third Party Advisory
https://usn.ubuntu.com/3930-2/Third Party Advisory
https://usn.ubuntu.com/3931-1/Third Party Advisory
https://usn.ubuntu.com/3931-2/Third Party Advisory
https://usn.ubuntu.com/3932-1/Third Party Advisory
https://usn.ubuntu.com/3932-2/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.htmlMailing List, Third Party Advisory
http://packetstormsecurity.com/files/151713/KVM-VMX-Preemption-Timer-Use-After-Free.htmlThird Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2019/02/18/2Mailing List, Patch, Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:0959Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0818Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0833Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3967
https://access.redhat.com/errata/RHSA-2019:4058
https://bugs.chromium.org/p/project-zero/issues/detail?id=1760Exploit, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ecec76885bcfe3294685dc363fd1273df0d5d65fMailing List, Patch, Vendor Advisory
https://github.com/torvalds/linux/commits/master/arch/x86/kvmThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KDOXCX3QFVWYXH5CQMGDDE7H6MUG5XGG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y2HMABEMJDPA6LPCBE5WIEZXUKY7DLTN/
https://security.netapp.com/advisory/ntap-20190404-0002/Third Party Advisory
https://support.f5.com/csp/article/K08413011
https://usn.ubuntu.com/3930-1/Third Party Advisory
https://usn.ubuntu.com/3930-2/Third Party Advisory
https://usn.ubuntu.com/3931-1/Third Party Advisory
https://usn.ubuntu.com/3931-2/Third Party Advisory
https://usn.ubuntu.com/3932-1/Third Party Advisory
https://usn.ubuntu.com/3932-2/Third Party Advisory

Timeline

Published: Mar 21, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-7221?

The KVM implementation in the Linux kernel through 4.20.5 has a Use-after-Free.

How severe is CVE-2019-7221?

Severity scoring for CVE-2019-7221 is pending analysis. The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2019-7221?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-7221?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST