Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-31916 First vendor Publication 2021-05-06
Vendor Cve Last vendor Modification 2021-06-23

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 6.7
Base Score 6.7 Environmental Score 6.7
impact SubScore 5.9 Temporal Score 6.7
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity Low
Privileges Required High 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:P/I:P/A:C)
Cvss Base Score 6.1 Attack Range Local
Cvss Impact Score 8.5 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31916

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3386
Os 2

Sources (Detail)

Source Url
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1946965
https://github.com/torvalds/linux/commit/4edbe1d7bcffcd6269f3b5eb63f710393ff2...
https://seclists.org/oss-sec/2021/q1/268
MLIST https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

Alert History

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Date Informations
2021-06-23 09:23:08
  • Multiple Updates
2021-06-04 17:22:54
  • Multiple Updates
2021-06-03 21:23:16
  • Multiple Updates
2021-06-03 00:22:57
  • Multiple Updates
2021-05-29 00:22:55
  • Multiple Updates
2021-05-27 21:23:17
  • Multiple Updates
2021-05-25 09:22:59
  • Multiple Updates
2021-05-19 09:23:07
  • Multiple Updates
2021-05-18 17:22:52
  • Multiple Updates
2021-05-07 00:22:47
  • Multiple Updates
2021-05-06 21:23:21
  • First insertion