CVE-2019-19036

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

btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036

https://security.netapp.com/advisory/ntap-20191205-0001/

https://usn.ubuntu.com/4414-1/

https://usn.ubuntu.com/4439-1/

Details

Source: MITRE

Published: 2019-11-21

Updated: 2020-08-03

Type: CWE-476

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 5.3.12 (inclusive)

Tenable Plugins

View all (15 total)

IDNameProductFamilySeverity
142576EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2020-2443)NessusHuawei Local Security Checks
high
139027Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4439-1)NessusUbuntu Local Security Checks
medium
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
137024EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1606)NessusHuawei Local Security Checks
medium
136239EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1536)NessusHuawei Local Security Checks
critical
135741EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1508)NessusHuawei Local Security Checks
medium
134559openSUSE Security Update : the Linux Kernel (openSUSE-2020-336)NessusSuSE Local Security Checks
critical
134363SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:0613-1)NessusSuSE Local Security Checks
critical
134293SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0584-1)NessusSuSE Local Security Checks
critical
134292SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0580-1)NessusSuSE Local Security Checks
critical
134289SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:0560-1)NessusSuSE Local Security Checks
critical
134288SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0559-1)NessusSuSE Local Security Checks
critical
134287SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0558-1)NessusSuSE Local Security Checks
critical