Home/CVE/A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way wh
CVE

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 wh

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.

HIGH · CVSS 7.8 EPSS 0.00816
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

14
linux kernel>= 4.5 and < 4.9.231
linux kernel>= 4.10 and < 4.14.189
linux kernel>= 4.15 and < 4.19.134
linux kernel>= 4.20 and < 5.4.53
linux kernel>= 5.5 and < 5.7.10
redhat enterprise linuxall versions
opensuse leapall versions
debian linuxall versions
⚠

Public Exploits & PoCs

2
pocbugzilla.kernel.org · show_bug.cgi?id=208003bugzilla.kernel.org
poclore.kernel.org · CAM_iQpUKQJrj8wE+Qa8NGR3P0L+5Uz=qo-O5+k_P60HzTde6aw%40mai...lore.kernel.org
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Aug 2020 · 03:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

19
rhsaRHSA-2021:1578Moderate
rhsaRHSA-2021:1739Moderate
suse-csafopenSUSE-SU-2021:0242-1
msrcCVE-2020-14356
usnUSN-4526-1
🔗

References & Sources

10
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.htmlMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1868453Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing ListThird Party Advisory
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