GHSA-pw4v-gr34-2553

Sydent DoS (via resource exhaustion) due to improper input validation

Source: GitHub Advisory Database (reviewed) Moderate CVE-2021-29433

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	matrix-sydent	< 2.3.0	2.3.0

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact Missing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. ### Patches Fixed by 3175fd3. ### For more information If you have any questions or comments about this advisory, email us at [email protected].

References

External links from the advisory. They lead to third-party sites.

https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553 web
https://nvd.nist.gov/vuln/detail/CVE-2021-29433 advisory
https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da web
https://github.com/matrix-org/sydent package
https://github.com/pypa/advisory-database/tree/main/vulns/matrix-sydent/PYSEC-2021-24.yaml web
https://pypi.org/project/matrix-sydent web