Executive Summary

Informations
Name CVE-2021-41073 First vendor Publication 2021-09-19
Vendor Cve Last vendor Modification 2022-04-06

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
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:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc//maps for exploitation.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41073

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-269 Improper Privilege Management

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7
Application 1
Os 1
Os 2
Os 3414

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20211014-0003/
DEBIAN https://www.debian.org/security/2021/dsa-4978
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC http://www.openwall.com/lists/oss-security/2021/09/18/2
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...

Alert History

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Date Informations
2022-04-06 17:23:09
  • Multiple Updates
2022-03-11 01:58:58
  • Multiple Updates
2022-02-01 01:52:47
  • Multiple Updates
2021-12-11 12:53:30
  • Multiple Updates
2021-12-11 01:50:23
  • Multiple Updates
2021-10-14 13:23:00
  • Multiple Updates
2021-10-08 21:23:28
  • Multiple Updates
2021-10-03 09:23:01
  • Multiple Updates
2021-10-02 09:22:58
  • Multiple Updates
2021-10-01 21:23:17
  • Multiple Updates
2021-09-25 21:23:14
  • Multiple Updates
2021-09-20 21:23:14
  • Multiple Updates
2021-09-20 17:22:51
  • Multiple Updates
2021-09-19 21:23:11
  • First insertion