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    CVE-2019-7221

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

    Published:Feb 7, 2019
    Last Modified:Nov 21, 2024
    EPS:Mar 17, 2019
    EPSS Score:0.00062
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Netapp
    Product
    Active Iq Performance Analytics Services
    Vendor
    Netapp
    Product
    Element Software Management Node
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Tus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Openshift Container Platform
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Extras Rt
    Vendor
    Redhat
    Product
    Rhel Tus

    Exploits

    https://bugs.chromium.org/p/project-zero/issues/detail?id=1760https://bugs.chromium.org/p/project-zero/issues/detail?id=1760

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    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
    https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
    https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
    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/
    https://support.f5.com/csp/article/K08413011
    https://usn.ubuntu.com/3930-1/
    https://usn.ubuntu.com/3930-2/
    https://usn.ubuntu.com/3931-1/
    https://usn.ubuntu.com/3931-2/
    https://usn.ubuntu.com/3932-1/
    https://usn.ubuntu.com/3932-2/
    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
    https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
    https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
    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/
    https://support.f5.com/csp/article/K08413011
    https://usn.ubuntu.com/3930-1/
    https://usn.ubuntu.com/3930-2/
    https://usn.ubuntu.com/3931-1/
    https://usn.ubuntu.com/3931-2/
    https://usn.ubuntu.com/3932-1/
    https://usn.ubuntu.com/3932-2/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High