CVE-2020-25220

The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.194	Release Notes Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1868453	Issue Tracking Patch Third Party Advisory
https://www.spinics.net/lists/stable/msg405099.html	Mailing List Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.233	Release Notes Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.140	Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.14.y&id=82fd2138a5ffd7e0d4320cdb669e115ee976a26e	Issue Tracking Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20201001-0004/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Information

Published : 2020-09-09 19:15

Updated : 2021-01-20 06:25

NVD link : CVE-2020-25220

Mitre link : CVE-2020-25220

JSON object : View

CWE

CWE-416

Use After Free

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Products Affected

linux

linux_kernel

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