GHSA-q9h8-gpw5-c95c
Matrix Sydent mishandles emails
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| PyPI | matrix-sydent | < 1.0.2 | 1.0.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowed_local_3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on [email protected]@good.example.com returns the [email protected] substring.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2019-11340
- https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc
- https://github.com/matrix-org/sydent/compare/7c002cd...09278fb
- https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2
- https://twitter.com/matrixdotorg/status/1118934335963500545