CVE-2019-19377

high
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

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c.

References

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19377

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

https://security.netapp.com/advisory/ntap-20200103-0001/

https://usn.ubuntu.com/4367-1/

https://usn.ubuntu.com/4369-1/

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

Details

Source: MITRE

Published: 2019-11-29

Updated: 2020-12-11

Type: CWE-416

Risk Information

CVSS v2

Base Score: 6.8

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

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*

Tenable Plugins

View all (13 total)

IDNameProductFamilySeverity
151229EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-2040)NessusHuawei Local Security Checks
high
144097Debian DLA-2483-1 : linux-4.19 security updateNessusDebian Local Security Checks
high
141644Photon OS 1.0: Linux PHSA-2020-1.0-0334NessusPhotonOS Local Security Checks
high
140328EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1958)NessusHuawei Local Security Checks
high
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
137290Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5714)NessusOracle Linux Local Security Checks
medium
137024EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1606)NessusHuawei Local Security Checks
medium
136966Ubuntu 18.04 LTS / 19.10 : Linux kernel regression (USN-4369-2)NessusUbuntu Local Security Checks
high
136965Ubuntu 20.04 : Linux kernel regression (USN-4367-2)NessusUbuntu Local Security Checks
high
136870EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1592)NessusHuawei Local Security Checks
high
136759Ubuntu 18.04 LTS / 19.10 : Linux kernel vulnerabilities (USN-4369-1)NessusUbuntu Local Security Checks
high
136732Ubuntu 20.04 : Linux kernel vulnerabilities (USN-4367-1)NessusUbuntu Local Security Checks
high