CVE-2019-19462

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

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/[email protected]/

https://security.netapp.com/advisory/ntap-20210129-0004/

https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046

https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b

https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8

https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531

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

Details

Source: MITRE

Published: 2019-11-30

Updated: 2021-01-29

Type: CWE-476

Risk Information

CVSS v2

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 5.4.1 (inclusive)

Configuration 2

OR

cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:*

cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*

cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:*

Configuration 3

OR

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

Configuration 4

OR

cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

Configuration 5

OR

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Tenable Plugins

View all (25 total)

IDNameProductFamilySeverity
146282openSUSE Security Update : RT kernel (openSUSE-2021-242)NessusSuSE Local Security Checks
high
140378SUSE SLES15 Security Update : kernel (SUSE-SU-2020:2487-1)NessusSuSE Local Security Checks
medium
140328EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1958)NessusHuawei Local Security Checks
high
139531Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5805)NessusOracle Linux Local Security Checks
medium
139308SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2105-1)NessusSuSE Local Security Checks
medium
139028Ubuntu 18.04 LTS : linux kernel vulnerabilities (USN-4440-1)NessusUbuntu Local Security Checks
medium
139027Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4439-1)NessusUbuntu Local Security Checks
medium
138854Amazon Linux 2 : kernel (ALAS-2020-1465)NessusAmazon Linux Local Security Checks
high
138834Ubuntu 18.04 LTS / 20.04 : Linux kernel vulnerabilities (USN-4425-1)NessusUbuntu Local Security Checks
medium
138727openSUSE Security Update : the Linux Kernel (openSUSE-2020-935)NessusSuSE Local Security Checks
high
138679openSUSE Security Update : the Linux Kernel (openSUSE-2020-801)NessusSuSE Local Security Checks
medium
138643Amazon Linux AMI : kernel (ALAS-2020-1401)NessusAmazon Linux Local Security Checks
high
138272SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)NessusSuSE Local Security Checks
critical
138139Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4414-1)NessusUbuntu Local Security Checks
high
137805EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1698)NessusHuawei Local Security Checks
medium
137617SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1605-1)NessusSuSE Local Security Checks
medium
137616SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1603-1)NessusSuSE Local Security Checks
medium
137615SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1602-1)NessusSuSE Local Security Checks
medium
137613SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1599-1)NessusSuSE Local Security Checks
medium
137608SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1587-1)NessusSuSE Local Security Checks
medium
137341Debian DSA-4699-1 : linux - security updateNessusDebian Local Security Checks
medium
137340Debian DSA-4698-1 : linux - security updateNessusDebian Local Security Checks
medium
137339Debian DLA-2242-1 : linux-4.9 security updateNessusDebian Local Security Checks
medium
136870EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1592)NessusHuawei Local Security Checks
high
136485Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5676)NessusOracle Linux Local Security Checks
medium