CVE Feed

    Dashboard / CVE / CVE-2019-6974

    CVE-2019-6974

    In the Linux kernel before 4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandles reference counting because of a race condition, leading to a use-after-free.

    Published:Feb 7, 2019
    Last Modified:Nov 21, 2024
    EPS:Feb 15, 2019
    EPSS Score:0.0706
    CVSS Score:8.1

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    F5
    Product
    Big-ip Access Policy Manager
    Vendor
    F5
    Product
    Big-ip Advanced Firewall Manager
    Vendor
    F5
    Product
    Big-ip Analytics
    Vendor
    F5
    Product
    Big-ip Application Acceleration Manager
    Vendor
    F5
    Product
    Big-ip Application Security Manager
    Vendor
    F5
    Product
    Big-ip Edge Gateway
    Vendor
    F5
    Product
    Big-ip Fraud Protection Service
    Vendor
    F5
    Product
    Big-ip Global Traffic Manager
    Vendor
    F5
    Product
    Big-ip Link Controller
    Vendor
    F5
    Product
    Big-ip Local Traffic Manager
    Vendor
    F5
    Product
    Big-ip Policy Enforcement Manager
    Vendor
    F5
    Product
    Big-ip Webaccelerator
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    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=1765https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9https://www.exploit-db.com/exploits/46388/https://bugs.chromium.org/p/project-zero/issues/detail?id=1765https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9https://www.exploit-db.com/exploits/46388/https://www.exploit-db.com/exploits/46388

    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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cfa39381173d5f969daf43582c95ad679189cbc9
    http://www.securityfocus.com/bid/107127
    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-2019:2809
    https://access.redhat.com/errata/RHSA-2019:3967
    https://access.redhat.com/errata/RHSA-2020:0103
    https://bugs.chromium.org/p/project-zero/issues/detail?id=1765
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.99
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.156
    https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9
    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://support.f5.com/csp/article/K11186236
    https://support.f5.com/csp/article/K11186236?utm_source=f5support&amp%3Butm_medium=RSS
    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/
    https://usn.ubuntu.com/3933-1/
    https://usn.ubuntu.com/3933-2/
    https://www.exploit-db.com/exploits/46388/
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cfa39381173d5f969daf43582c95ad679189cbc9
    http://www.securityfocus.com/bid/107127
    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-2019:2809
    https://access.redhat.com/errata/RHSA-2019:3967
    https://access.redhat.com/errata/RHSA-2020:0103
    https://bugs.chromium.org/p/project-zero/issues/detail?id=1765
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.99
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.156
    https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9
    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://support.f5.com/csp/article/K11186236
    https://support.f5.com/csp/article/K11186236?utm_source=f5support&amp%3Butm_medium=RSS
    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/
    https://usn.ubuntu.com/3933-1/
    https://usn.ubuntu.com/3933-2/
    https://www.exploit-db.com/exploits/46388/

    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