CVE-2020-8992

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

ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service (soft lockup) via a crafted journal size.

References

https://patchwork.ozlabs.org/patch/1236118/

https://security.netapp.com/advisory/ntap-20200313-0003/

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

https://usn.ubuntu.com/4318-1/

https://usn.ubuntu.com/4324-1/

https://usn.ubuntu.com/4344-1/

https://usn.ubuntu.com/4342-1/

https://usn.ubuntu.com/4419-1/

Details

Source: MITRE

Published: 2020-02-14

Updated: 2021-07-21

Type: CWE-400

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 5.5.3 (inclusive)

Tenable Plugins

View all (21 total)

IDNameProductFamilySeverity
138325Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4419-1)NessusUbuntu Local Security Checks
medium
138272SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)NessusSuSE Local Security Checks
critical
137932EulerOS Virtualization 3.0.6.0 : kernel (EulerOS-SA-2020-1713)NessusHuawei Local Security Checks
medium
137516EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-1674)NessusHuawei Local Security Checks
critical
136782SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1275-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)NessusSuSE Local Security Checks
critical
136661SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1255-1)NessusSuSE Local Security Checks
critical
136087Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4344-1)NessusUbuntu Local Security Checks
medium
136085Ubuntu 18.04 LTS / 19.10 : Linux kernel vulnerabilities (USN-4342-1)NessusUbuntu Local Security Checks
high
136022Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5663)NessusOracle Linux Local Security Checks
high
135525EulerOS 2.0 SP3 : kernel (EulerOS-SA-2020-1396)NessusHuawei Local Security Checks
critical
135285Ubuntu 16.04 LTS / 18.04 LTS : linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-gke-4.15, (USN-4324-1)NessusUbuntu Local Security Checks
high
135269Ubuntu 16.04 LTS / 18.04 LTS : linux, linux-hwe vulnerabilities (USN-4318-1)NessusUbuntu Local Security Checks
high
134799EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1308)NessusHuawei Local Security Checks
high
134784EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1292)NessusHuawei Local Security Checks
high
134624SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:0688-1)NessusSuSE Local Security Checks
high
134559openSUSE Security Update : the Linux Kernel (openSUSE-2020-336)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