Executive Summary

Informations
Name CVE-2021-35039 First vendor Publication 2021-07-07
Vendor Cve Last vendor Modification 2021-09-20

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:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35039

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-347 Improper Verification of Cryptographic Signature

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3399

Sources (Detail)

Source Url
CONFIRM https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.14
https://github.com/torvalds/linux/commit/0c18f29aae7ce3dadd26d8ee3505d07cc982...
https://security.netapp.com/advisory/ntap-20210813-0004/
MISC https://www.openwall.com/lists/oss-security/2021/07/06/3
MLIST http://www.openwall.com/lists/oss-security/2021/07/06/3

Alert History

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Date Informations
2021-09-20 21:23:31
  • Multiple Updates
2021-08-26 12:43:33
  • Multiple Updates
2021-08-24 01:44:02
  • Multiple Updates
2021-08-19 09:22:59
  • Multiple Updates
2021-08-13 13:22:58
  • Multiple Updates
2021-07-15 21:23:14
  • Multiple Updates
2021-07-08 01:42:15
  • Multiple Updates
2021-07-08 01:42:14
  • Multiple Updates
2021-07-07 17:22:45
  • Multiple Updates
2021-07-07 09:22:58
  • First insertion