CVE-2020-8992
MEDIUMLinux Kernel < 5.5.3 - Denial of Service via Crafted Journal Size
Title source: llmDescription
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 (8)
Core 8
Core References
Patch, Third Party Advisory x_refsource_misc
https://patchwork.ozlabs.org/patch/1236118/
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200313-0003/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4318-1/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4324-1/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4344-1/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4342-1/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4419-1/
Scores
CVSS v3
5.5
EPSS
0.0042
EPSS Percentile
33.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-400
CWE-834
Status
published
Products (13)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
19.10
linux/linux_kernel
< 5.5.3
netapp/active_iq_unified_manager
netapp/cloud_backup
netapp/data_availability_services
netapp/h410c_firmware
netapp/hci_management_node
... and 3 more
Published
Feb 14, 2020
Tracked Since
Feb 18, 2026