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CVE-2020-14356

Affected software4 products, listed below
Severity7.8 High CVSS 3.1 2 scores
WeaknessCWE-476
Published19 Aug 2020
Updated17 Jun 2026

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 escalate their privileges on the system.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 6 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 1.0% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

7.8 HIGH v3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H NVD Primary published
CVSS 2.0 7.2 none AV:L/AC:L/Au:N/C:C/I:C/A:C NVD Primary

Affected software and releases

Products and versions

10 products, 18 version entries
SourceVendorProductSchemeAffected versions
nvd canonical ubuntu linux generic 14.04 · 16.04 · 18.04 · 20.04
nvd debian debian linux generic 9.0
nvd linux linux kernel generic ≥ 4.5 and < 4.9.231 · ≥ 4.10 and < 4.14.189 · ≥ 4.15 and < 4.19.134 · ≥ 4.20 and < 5.4.53 · ≥ 5.5 and < 5.7.10
nvd netapp active iq unified manager generic any version
nvd netapp cloud backup generic any version
nvd netapp hci management node generic any version
nvd netapp solidfire generic any version
nvd netapp solidfire baseboard management controller firmware generic any version
nvd opensuse leap generic 15.1 · 15.2
nvd redhat enterprise linux generic 8.0

References

URLTags
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html Mailing List, Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=208003 Exploit, Issue Tracking, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1868453 Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html Mailing List, Third Party Advisory
https://lore.kernel.org/netdev/CAM_iQpUKQJrj8wE+Qa8NGR3P0L+5Uz=qo-O5+k_P60HzTde6aw%40mail.gmail.com/t/ Exploit, Vendor Advisory
https://security.netapp.com/advisory/ntap-20200904-0002/ Third Party Advisory
https://usn.ubuntu.com/4483-1/ Third Party Advisory

Timeline

Published2020-08-19By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.