What’s Vulnerable › Vulnerabilities

CVE-2019-19462

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-30 · updated 2026-10-08
• Weakness: CWE-476

Description

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.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 20.04
• Debian Linux: 8.0, 9.0, 10.0
• Linux kernel: through 5.4.1
• Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: from 9.5
• NetApp Hci Compute Node: all versions
• NetApp Hci Management Node: all versions
• NetApp Hci Storage Node: all versions
• NetApp Solidfire: all versions
• openSUSE Leap: 15.1, 15.2

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/

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