Vulnerability Description
Wire-server is the system server for the wire back-end services. Releases prior to v2022-03-01 are subject to a denial of service attack via a crafted object causing a hash collision. This collision causes the server to spend at least quadratic time parsing it which can lead to a denial of service for a heavily used server. The issue has been fixed in wire-server 2022-03-01 and is already deployed on all Wire managed services. On premise instances of wire-server need to be updated to 2022-03-01, so that their backends are no longer affected. There are no known workarounds for this issue.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wire | Wire-Server | < 2022-03-01 |
Related Weaknesses (CWE)
References
- https://cs-syd.eu/posts/2021-09-11-json-vulnerabilityExploitThird Party Advisory
- https://github.com/wireapp/wire-server/security/advisories/GHSA-phxv-pffh-fq2rThird Party Advisory
- https://cs-syd.eu/posts/2021-09-11-json-vulnerabilityExploitThird Party Advisory
- https://github.com/wireapp/wire-server/security/advisories/GHSA-phxv-pffh-fq2rThird Party Advisory
FAQ
What is CVE-2021-41119?
CVE-2021-41119 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Wire-server is the system server for the wire back-end services. Releases prior to v2022-03-01 are subject to a denial of service attack via a crafted object causing a hash collision. This collision c...
How severe is CVE-2021-41119?
CVE-2021-41119 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41119?
Check the references section above for vendor advisories and patch information. Affected products include: Wire Wire-Server.