CVE-2020-25212

CVE Details

Release Date:	2020-09-09
Impact:	None	What is this?

Description

A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.

See more information about CVE-2020-25212 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.0
Vector String:	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	High
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2020-5866	2020-10-06
Oracle Linux version 7 (kernel)	ELSA-2020-5437	2020-12-16
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5866	2020-10-06
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5884	2020-10-12
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5885	2020-10-12
Oracle Linux version 8 (kernel)	ELSA-2021-1578	2021-05-25
Oracle Linux version 8 (kernel-uek)	ELSA-2020-5884	2020-10-12
Oracle VM version 3.4 (kernel-uek)	OVMSA-2020-0044	2020-10-09