CVE-2022-31742
First published: Tue May 31 2022(Updated: )
An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Thunderbird | <91.10 | 91.10 |
| Firefox | <101 | |
| Firefox ESR | <91.10 | |
| Thunderbird | <91.10 | |
| Firefox | <101 | 101 |
| Firefox ESR | <91.10 | 91.10 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1730434
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-20/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-21/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-22/
- https://www.mozilla.org/security/advisories/mfsa2022-20/
- https://www.mozilla.org/security/advisories/mfsa2022-21/
- https://www.mozilla.org/security/advisories/mfsa2022-22/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2022-31742?
CVE-2022-31742 has been classified with a severity level that may allow for potential cross-origin account linking exploits.
How do I fix CVE-2022-31742?
To remediate CVE-2022-31742, update affected Mozilla products such as Firefox, Firefox ESR, and Thunderbird to fixed versions 101 or 91.10.
Which software is affected by CVE-2022-31742?
CVE-2022-31742 affects Mozilla Firefox versions earlier than 101, Firefox ESR versions earlier than 91.10, and Thunderbird versions earlier than 91.10.
What types of attacks are associated with CVE-2022-31742?
CVE-2022-31742 is associated with timing attacks that could exploit vulnerabilities in handling allowCredential entries.
What are the potential consequences of CVE-2022-31742?
The exploitation of CVE-2022-31742 could lead to cross-origin account linking, undermining WebAuthn goals.
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