Executive Summary

Informations
Name CVE-2020-25212 First vendor Publication 2020-09-09
Vendor Cve Last vendor Modification 2020-10-20

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7
Base Score 7 Environmental Score 7
impact SubScore 5.9 Temporal Score 7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.4 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25212

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3344

Sources (Detail)

Source Url
MISC https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://twitter.com/grsecurity/status/1303370421958578179
MLIST https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html
UBUNTU https://usn.ubuntu.com/4525-1/
https://usn.ubuntu.com/4527-1/
https://usn.ubuntu.com/4578-1/

Alert History

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Date Informations
2020-10-20 09:22:57
  • Multiple Updates
2020-10-17 21:23:05
  • Multiple Updates
2020-10-16 09:22:53
  • Multiple Updates
2020-10-12 05:22:51
  • Multiple Updates
2020-09-28 21:23:10
  • Multiple Updates
2020-09-26 05:22:50
  • Multiple Updates
2020-09-24 21:23:13
  • Multiple Updates
2020-09-24 05:22:56
  • Multiple Updates
2020-09-23 00:22:55
  • Multiple Updates
2020-09-22 21:23:11
  • Multiple Updates
2020-09-16 21:23:16
  • Multiple Updates
2020-09-15 00:22:50
  • Multiple Updates
2020-09-09 21:23:09
  • First insertion