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CVE-2021-41119

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/13/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

wire:wire-server

Weaknesses (CWE)

CWE-400CWE-400

References

https://cs-syd.eu/posts/2021-09-11-json-vulnerability(security-advisories@github.com)

https://github.com/wireapp/wire-server/security/advisories/GHSA-phxv-pffh-fq2r(security-advisories@github.com)

https://cs-syd.eu/posts/2021-09-11-json-vulnerability(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/wireapp/wire-server/security/advisories/GHSA-phxv-pffh-fq2r(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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