CVE-2019-7221

Public Exploit

Description

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

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://packetstormsecurity.com/files/151713/KVM-VMX-Preemption-Timer-Use-After-Free.html vdb entry third party advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KDOXCX3QFVWYXH5CQMGDDE7H6MUG5XGG/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y2HMABEMJDPA6LPCBE5WIEZXUKY7DLTN/ vendor advisory
https://github.com/torvalds/linux/commits/master/arch/x86/kvm third party advisory
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.html mailing list third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2019/02/18/2 mailing list third party advisory patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ecec76885bcfe3294685dc363fd1273df0d5d65f mailing list patch vendor advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1760 exploit third party advisory patch
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html third party advisory mailing list
https://usn.ubuntu.com/3932-1/ third party advisory vendor advisory
https://usn.ubuntu.com/3932-2/ third party advisory vendor advisory
https://usn.ubuntu.com/3930-1/ third party advisory vendor advisory
https://usn.ubuntu.com/3931-1/ third party advisory vendor advisory
https://usn.ubuntu.com/3931-2/ third party advisory vendor advisory
https://usn.ubuntu.com/3930-2/ third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20190404-0002/ third party advisory
https://access.redhat.com/errata/RHSA-2019:0833 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:0818 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html third party advisory mailing list
https://access.redhat.com/errata/RHBA-2019:0959 third party advisory vendor advisory
https://support.f5.com/csp/article/K08413011
https://access.redhat.com/errata/RHSA-2019:3967 vendor advisory
https://access.redhat.com/errata/RHSA-2019:4058 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-7221?
CVE-2019-7221 has been scored as a high severity vulnerability.
How to fix CVE-2019-7221?
To fix CVE-2019-7221, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-7221 being actively exploited in the wild?
It is possible that CVE-2019-7221 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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