01 Record

CVE-2020-14356

A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or

UnratedPUBLISHEDCNA: redhat

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 1.00% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 62.7% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2020-08-19 14:37Z6 YR AGO

Last updated

2024-08-04 12:39Z2 YR AGO

Reserved

2020-06-17

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase
CWE-416Use After FreeVariant

Data version

5.1

Document digest

d539eb6314110147460d4232111bdd5f2f9316d1132bc6214d43fbd6afb51e9e

05 Affected products

VendorProductVersionsPlatforms

n/aKernelKernel versions before 5.7.10—

06 References

bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1868453x_refsource_MISC
bugzilla.kernel.orghttps://bugzilla.kernel.org/show_bug.cgi?id=208003x_refsource_MISC
lore.kernel.orghttps://lore.kernel.org/netdev/CAM_iQpUKQJrj8wE+Qa8NGR3P0L+5Uz=qo-O5+k_P60HzTde6aw%40mail.gmail.com/t/x_refsource_MISC
lists.opensuse.orgopenSUSE-SU-2020:1236http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.htmlvendor-advisoryx_refsource_SUSE
lists.opensuse.orgopenSUSE-SU-2020:1325http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.htmlvendor-advisoryx_refsource_SUSE
security.netapp.comhttps://security.netapp.com/advisory/ntap-20200904-0002/x_refsource_CONFIRM
usn.ubuntu.comUSN-4484-1https://usn.ubuntu.com/4484-1/vendor-advisoryx_refsource_UBUNTU
usn.ubuntu.comUSN-4483-1https://usn.ubuntu.com/4483-1/vendor-advisoryx_refsource_UBUNTU
usn.ubuntu.comUSN-4526-1https://usn.ubuntu.com/4526-1/vendor-advisoryx_refsource_UBUNTU
lists.debian.org[debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security updatehttps://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlmailing-listx_refsource_MLIST
lists.debian.org[debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlmailing-listx_refsource_MLIST
lists.debian.org[debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression updatehttps://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlmailing-listx_refsource_MLIST

07 Fixed in

AlmaLinux 8

kernel-tools-libs-devel
Fixed in 4.18.0-305.el8

CloudLinux 8

kernel-tools-libs-devel
Fixed in 4.18.0-305.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Debian 12

linux
Fixed in 5.7.10-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 5.7.10-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 5.7.10-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.