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ubuntucveUbuntu.comUB:CVE-2020-26966
HistoryDec 09, 2020 - 12:00 a.m.

CVE-2020-26966

2020-12-0900:00:00
ubuntu.com
ubuntu.com
8

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

47.1%

Searching for a single word from the address bar caused an mDNS request to
be sent on the local network searching for a hostname consisting of that
string; resulting in an information leak. Note: This issue only affected
Windows operating systems. Other operating systems are unaffected.
. This
vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird <
78.5.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

47.1%