Executive Summary

Informations
Name CVE-2021-28964 First vendor Publication 2021-03-22
Vendor Cve Last vendor Modification 2021-04-30

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 4.7
Base Score 4.7 Environmental Score 4.7
impact SubScore 3.6 Temporal Score 4.7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 1.9 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28964

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3
Os 3358

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210430-0003/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...

Alert History

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Date Informations
2021-05-04 14:10:06
  • Multiple Updates
2021-05-04 13:25:41
  • Multiple Updates
2021-04-30 13:22:50
  • Multiple Updates
2021-04-22 03:14:55
  • Multiple Updates
2021-03-31 00:23:03
  • Multiple Updates
2021-03-29 09:22:59
  • Multiple Updates
2021-03-27 00:23:04
  • Multiple Updates
2021-03-26 21:23:24
  • Multiple Updates
2021-03-26 12:38:43
  • First insertion