CVE Vulnerability

CVE-2020-6806

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.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.mozilla.org/security/advisories/mfsa2020-10/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1612308 Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2020-08/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-09/ Vendor Advisory
https://usn.ubuntu.com/4328-1/ Third Party Advisory
https://usn.ubuntu.com/4335-1/ Third Party Advisory
http://packetstormsecurity.com/files/157524/Firefox-js-ReadableStreamCloseInternal-Out-Of-Bounds-Access.html Third Party Advisory VDB Entry
Configurations

Configuration 1

cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Information

Published : 2020-03-25 10:15

Updated : 2023-02-03 11:54

NVD link : CVE-2020-6806

Mitre link : CVE-2020-6806

Products Affected

Firefox Esr

Mozilla

CWE
CWE-125

Out-of-bounds Read