CVE-2021-29433

Summary

Sydent is a reference Matrix identity server. In Sydent versions 2.2.0 and prior, sissing 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. A patch for the vulnerability is in version 2.3.0. No workarounds are known to exist.

Affected Software

Weaknesses

• CWE-20: {"CWE-20":"Improper Input Validation"}

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553
• https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da

References

• https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553
• https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da

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