QID 981366

QID 981366: Python (pip) Security Update for matrix-synapse (GHSA-jrh7-mhhx-6h88)

Security update has been released for matrix-synapse to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Missing input validation of some parameters on the groups (also known as communities) endpoints could cause excessive use of disk space and memory leading to resource exhaustion. Additionally clients may have issues rendering large fields.

CVSS V3 rated as High - 6.5 severity.

CVSS V2 rated as Medium - 4.3 severity.

Solution

This issue is fixed by #9321 and #9393.Workaround:
The groups feature can be disabled (by setting `enable_group_creation` to `False`) to mitigate this issue. Note that it is disabled by default.

Vendor References

GHSA-jrh7-mhhx-6h88 - github.com/advisories/GHSA-jrh7-mhhx-6h88

CVEs related to QID 981366

CVE-2021-21393 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-jrh7-mhhx-6h88	matrix-synapse		github.com/advisories/GHSA-jrh7-mhhx-6h88

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