Executive Summary

Informations
Name CVE-2020-6806 First vendor Publication 2020-03-25
Vendor Cve Last vendor Modification 2023-02-03

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Overall CVSS Score 8.8
Base Score 8.8 Environmental Score 8.8
impact SubScore 5.9 Temporal Score 8.8
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
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:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6806

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 544
Application 133
Application 417
Os 3

Snort® IPS/IDS

Date Description
2020-07-23 Mozilla Firefox ReadableStreamCloseInternal out-of-bounds access attempt
RuleID : 54380 - Revision : 1 - Type : BROWSER-FIREFOX
2020-07-23 Mozilla Firefox ReadableStreamCloseInternal out-of-bounds access attempt
RuleID : 54379 - Revision : 1 - Type : BROWSER-FIREFOX

Sources (Detail)

Source Url
MISC http://packetstormsecurity.com/files/157524/Firefox-js-ReadableStreamCloseInt...
https://bugzilla.mozilla.org/show_bug.cgi?id=1612308
https://www.mozilla.org/security/advisories/mfsa2020-08/
https://www.mozilla.org/security/advisories/mfsa2020-09/
https://www.mozilla.org/security/advisories/mfsa2020-10/
UBUNTU https://usn.ubuntu.com/4328-1/
https://usn.ubuntu.com/4335-1/

Alert History

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Date Informations
2024-02-10 02:11:58
  • Multiple Updates
2024-02-02 02:18:57
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2024-02-01 12:21:47
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2023-09-05 13:13:17
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2023-09-05 01:21:22
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2023-09-02 13:12:05
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2023-09-02 01:21:41
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2023-08-12 13:16:57
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2023-08-12 01:20:58
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2023-08-11 13:09:48
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2023-08-11 01:21:37
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2023-08-06 13:07:58
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2023-08-06 01:20:45
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2023-08-04 13:08:19
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2023-08-04 01:21:05
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2023-07-14 13:08:19
  • Multiple Updates
2023-07-14 01:20:54
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2023-04-01 01:57:41
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2023-03-29 02:10:48
  • Multiple Updates
2023-03-28 12:21:07
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2023-02-04 05:27:49
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2022-10-11 13:00:55
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2022-10-11 01:20:39
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2022-04-26 01:52:54
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2021-05-04 13:56:03
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2021-04-22 03:06:15
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2020-10-14 01:29:39
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2020-10-03 01:30:00
  • Multiple Updates
2020-07-23 21:22:57
  • Multiple Updates
2020-05-29 01:25:54
  • Multiple Updates
2020-05-23 02:40:21
  • First insertion