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    CVE-2019-19462

    relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.

    Published:Nov 29, 2019
    Last Modified:Nov 21, 2024
    EPS:Nov 30, 2019
    EPSS Score:0.00101
    CVSS Score:5.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Netapp
    Product
    Active Iq Unified Manager
    Vendor
    Netapp
    Product
    Hci Compute Node
    Vendor
    Netapp
    Product
    Hci Management Node
    Vendor
    Netapp
    Product
    Hci Storage Node
    Vendor
    Netapp
    Product
    Solidfire
    Vendor
    Opensuse
    Product
    Leap

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    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/2020-06/msg00022.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
    https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
    https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
    https://security.netapp.com/advisory/ntap-20210129-0004/
    https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8
    https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531
    https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046
    https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b
    https://usn.ubuntu.com/4414-1/
    https://usn.ubuntu.com/4425-1/
    https://usn.ubuntu.com/4439-1/
    https://usn.ubuntu.com/4440-1/
    https://www.debian.org/security/2020/dsa-4698
    https://www.debian.org/security/2020/dsa-4699
    http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
    https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
    https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
    https://security.netapp.com/advisory/ntap-20210129-0004/
    https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8
    https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531
    https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046
    https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b
    https://usn.ubuntu.com/4414-1/
    https://usn.ubuntu.com/4425-1/
    https://usn.ubuntu.com/4439-1/
    https://usn.ubuntu.com/4440-1/
    https://www.debian.org/security/2020/dsa-4698
    https://www.debian.org/security/2020/dsa-4699

    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