Vulnerability · Published Mar 1, 2022 · Assigned by GitHub_M

CVE-2021-41193Use of Externally-Controlled Format String in wire-avs

Critical 9.8

In plain English

A critical-severity security flaw in wire-avs from wireapp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)2.5%top 15.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	com.wire:avs	7.1.12	GHSA-2j6v-xpf3-xvrv

Affected products (as reported)

Vendor	Product	Versions
wireapp	wire-avs	< 7.1.12

Weakness: CWE-134 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/wireapp/wire-avs/security/advisories/GHSA-2j6v-xpf3-xvrv x_refsource_CONFIRM
https://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbe x_refsource_MISC