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-2021-42739 First vendor Publication 2021-10-20
Vendor Cve Last vendor Modification 2024-03-24

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:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42739

CWE : Common Weakness Enumeration

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

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 6
Application 1
Application 1
Application 1
Application 1
Application 1
Os 1
Os 3
Os 3438

Sources (Detail)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ%40mwanda/
https://seclists.org/oss-sec/2021/q2/46
Source Url
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1951739
https://www.starwindsoftware.com/security/sw-20220804-0001/
N/A https://www.oracle.com/security-alerts/cpujul2022.html

Alert History

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Date Informations
2024-03-25 05:28:03
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2021-10-20 13:22:56
  • First insertion