CVE-2019-19462
Vulnerability Summary
Timeline
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 0.46%• Percentile: 39%
Techniques & Countermeasures
- CWE-476•NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Systems
- canonical•ubuntu_linux
14.04 | 16.04 | 18.04 | 20.04
- debian•linux
< 5.6.14-2 | < 5.6.14-2 | < 5.6.14-2 | < 5.6.14-2
- ubuntu•linux
< 4.15.0-109.110 | < 5.4.0-42.46
- ubuntu•linux-aws
< 4.15.0-1077.81 | < 5.4.0-1020.20
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.3
< 5.3.0-1032.34~18.04.2
- ubuntu•linux-aws-fips
< 4.15.0-2022.22 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1079.83~16.04.1
- ubuntu•linux-azure
< 4.15.0-1091.101~14.04.1 | < 4.15.0-1091.101~16.04.1 | all | < 5.4.0-1022.22
- ubuntu•linux-azure-4.15
< 4.15.0-1091.101
- ubuntu•linux-azure-5.3
< 5.3.0-1034.35~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fips
< 4.15.0-2006.7 | all
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.15.0-1037.42
- ubuntu•linux-gcp
< 4.15.0-1080.90~16.04.1 | all | < 5.4.0-1021.21
- ubuntu•linux-gcp-4.15
< 4.15.0-1080.90
- ubuntu•linux-gcp-5.3
< 5.3.0-1032.34~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1066.69
- ubuntu•linux-gke-5.0
< 5.0.0-1045.46
- ubuntu•linux-gke-5.3
< 5.3.0-1032.34~18.04.1
- ubuntu•linux-hwe
< 4.15.0-112.113~16.04.1 | < 5.3.0-64.58~18.04.1
- ubuntu•linux-hwe-5.4
< 5.4.0-42.46~18.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.15.0-1069.70 | < 5.4.0-1020.20
- ubuntu•linux-oem
< 4.15.0-1091.101
- ubuntu•linux-oem-5.6
< 5.6.0-1018.18
- ubuntu•linux-oem-osp1
< 5.0.0-1065.70
- ubuntu•linux-oracle
< 4.15.0-1050.54~16.04.1 | < 4.15.0-1048.52 | < 5.4.0-1021.21
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-oracle-5.3
< 5.3.0-1030.32~18.04.1
- ubuntu•linux-raspi
< 5.4.0-1015.15
- ubuntu•linux-raspi-5.4
< 5.4.0-1015.15~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.15.0-1065.69 | all
- ubuntu•linux-raspi2-5.3
< 5.3.0-1030.32~18.04.2
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
< 5.4.0-30.34 | all
- ubuntu•linux-snapdragon
< 4.15.0-1083.91
- debian•debian_linux
8.0 | 9.0 | 10.0
- linux•linux_kernel
≤ 5.4.1
- netapp•active_iq_unified_manager
≥ 9.5
- netapp•hci_compute_node
na
- netapp•hci_management_node
na
- netapp•hci_storage_node_bios
na
Showing first 50 affected entries in server-rendered view.
References (23)
- 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://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- 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://usn.ubuntu.com/4414-1/
- https://usn.ubuntu.com/4425-1/
- https://usn.ubuntu.com/4439-1/
- https://usn.ubuntu.com/4440-1/
- https://security.netapp.com/advisory/ntap-20210129-0004/
- https://ubuntu.com/security/CVE-2019-19462
- https://lore.kernel.org/lkml/20191219121256.26480-1-dja@axtens.net/
- https://ubuntu.com/security/notices/USN-4414-1
- https://ubuntu.com/security/notices/USN-4425-1
- https://ubuntu.com/security/notices/USN-4439-1
- https://ubuntu.com/security/notices/USN-4440-1
- https://www.cve.org/CVERecord?id=CVE-2019-19462
- https://security-tracker.debian.org/tracker/CVE-2019-19462