thunderbird vulnerabilities

2021-08-3112:15:03

Google

osv.dev

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.4 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.014 Low

EPSS

Percentile

86.5%

JSON

It was discovered that Thunderbird didn’t ignore IMAP server responses
prior to completion of the STARTTLS handshake. A person-in-the-middle
could potentially exploit this to trick Thunderbird into showing incorrect
information. (CVE-2021-29969)

Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service, or
execute arbitrary code. (CVE-2021-29970, CVE-2021-29976, CVE-2021-29980,
CVE-2021-29984, CVE-2021-29985, CVE-2021-29986, CVE-2021-29988,
CVE-2021-29989, CVE-2021-30547)