CVE-2022-1834
First published: Tue May 31 2022(Updated: )
When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Thunderbird | <91.10 | 91.10 |
| Thunderbird | <91.10 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2022-1834?
CVE-2022-1834 has a severity rating that indicates a moderate risk to user confidentiality.
How do I fix CVE-2022-1834?
To fix CVE-2022-1834, upgrade to Mozilla Thunderbird version 91.10 or later.
What does CVE-2022-1834 affect?
CVE-2022-1834 specifically affects Mozilla Thunderbird versions prior to 91.10.
Can CVE-2022-1834 be exploited remotely?
Yes, CVE-2022-1834 can be exploited remotely through crafted email messages to manipulate sender display.
What are the potential impacts of CVE-2022-1834 on users?
The potential impacts include misleading sender information that could facilitate phishing attacks.
- agent/type
- agent/first-publish-date
- agent/author
- agent/description
- agent/references
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/mozilla-advisory
- vendor/mozilla
- vendor/thunderbird
- agent/software-canonical-lookup-request
- source/Mozilla
- agent/software-canonical-lookup
- collector/nvd-index
- canonical/thunderbird