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

Quick assessment

Affected
wireapp wire-avs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wire-AVS是该存储库是 Wire 源代码的一部分。 Wire-AVS存在格式化字符串错误漏洞，该漏洞允许攻击者可利用该漏洞导致拒绝服务或可能执行任意代码。

CVSS 9.8 · Critical EPSS 2.47% · P84

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-41193

Vulnerability Information
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Vulnerability Title
Use of Externally-Controlled Format String in wire-avs
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部控制的格式字符串
Source: CVE Program / CVE List V5
Vulnerability Title
Wire-AVS 格式化字符串错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wire-AVS是该存储库是 Wire 源代码的一部分。 Wire-AVS存在格式化字符串错误漏洞，该漏洞允许攻击者可利用该漏洞导致拒绝服务或可能执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
wireapp wire-avs < 7.1.12 -

II. Public POCs for CVE-2021-41193

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III. Intelligence Information for CVE-2021-41193

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Patches & Fixes for CVE-2021-41193 (1)

Vendor Advisories for CVE-2021-41193 (1)

IV. Related Vulnerabilities

Same product: wire-avs
Same vendor: wireapp
Same weakness: CWE-134

V. Comments for CVE-2021-41193

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