CVE-2021-41193

Use of Externally-Controlled Format String in wire-avs

Description

wire-avs is the audio visual signaling (AVS) component of Wire, an open-source messenger. A remote format string vulnerability in versions prior to 7.1.12 allows an attacker to cause a denial of service or possibly execute arbitrary code. The issue has been fixed in wire-avs 7.1.12. There are currently no known workarounds.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.55% Top 20%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: wireapp wire-avs
Published at:
Updated at:

References

Link Tags
https://github.com/wireapp/wire-avs/security/advisories/GHSA-2j6v-xpf3-xvrv third party advisory patch
https://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbe third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-41193?
CVE-2021-41193 has been scored as a critical severity vulnerability.
How to fix CVE-2021-41193?
To fix CVE-2021-41193, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41193 being actively exploited in the wild?
It is possible that CVE-2021-41193 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41193?
CVE-2021-41193 affects wireapp wire-avs.
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