What’s Vulnerable › Vulnerabilities

CVE-2019-7221

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-03-21 · updated 2026-06-17
• Weakness: CWE-416

Description

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

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 18.10
• Debian Linux: 8.0
• Fedoraproject Fedora: 28, 29
• Linux kernel: through 4.20.5
• NetApp Active Iq Performance Analytics Services: all versions
• NetApp Element Software Management Node: all versions
• openSUSE Leap: 15.0
• Red Hat 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
• Red Hat OpenShift Container Platform 4.18: 3.11

References

• http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.html
• http://packetstormsecurity.com/files/151713/KVM-VMX-Preemption-Timer-Use-After-Free.html
• http://www.openwall.com/lists/oss-security/2019/02/18/2
• https://access.redhat.com/errata/RHBA-2019:0959
• https://access.redhat.com/errata/RHSA-2019:0818
• https://access.redhat.com/errata/RHSA-2019:0833
• 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=1760
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ecec76885bcfe3294685dc363fd1273df0d5d65f
• https://github.com/torvalds/linux/commits/master/arch/x86/kvm
• https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html

Get alerted when CVE-2019-7221 or the next vulnerability affects your stack