ID de Prueba:	1.3.6.1.4.1.25623.1.0.118173
Categoría:	Buffer overflow
Título:	Zoom Client Heap Based Buffer Overflow (ZSB-22003)
Resumen:	Zoom Client is prone to a heap based buffer overflow; vulnerability.
Descripción:	Summary: Zoom Client is prone to a heap based buffer overflow vulnerability. Vulnerability Insight: The vulnerability allows remote attackers to execute arbitrary code on affected installations of Zoom Clients. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of encrypted messages. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current user. Affected Software/OS: All desktop versions of the Zoom Client for Meetings before 5.6.3. Solution: Update to version 5.6.3 or later. CVSS Score: 9.0 CVSS Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2021-30480 https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/04/zoom-zero-day-discovery-makes-calls-safer-hackers-200000-richer/ https://explore.zoom.us/en/trust/security/security-bulletin/ https://sector7.computest.nl/post/2021-08-zoom/ https://twitter.com/thezdi/status/1379855435730149378 https://twitter.com/thezdi/status/1379859851061395459 https://www.securityweek.com/200000-awarded-zero-click-zoom-exploit-pwn2own https://www.zdnet.com/article/critical-zoom-vulnerability-triggers-remote-code-execution-without-user-input/ https://www.zerodayinitiative.com/advisories/ZDI-21-971/ https://zoom.us/feature/messaging Common Vulnerability Exposure (CVE) ID: CVE-2021-34407
Copyright	Copyright (C) 2021 Greenbone Networks GmbH

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