Time-of-check Time-of-use (TOCTOU) Affecting kernel-tools package, versions <0:3.10.0-1160.11.1.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELTOOLS-2178781
  • published26 Jul 2021
  • disclosed9 Sept 2020

Introduced: 9 Sep 2020

CVE-2020-25212  (opens in a new tab)
CWE-367  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-tools to version 0:3.10.0-1160.11.1.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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.

CVSS Scores

version 3.1