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Home CVE Database CVE-2021-41380

CVE-2021-41380

Description

RealVNC Viewer 6.21.406 allows remote VNC servers to cause a denial of service (application crash) via crafted RFB protocol data. NOTE: It is asserted that this issue requires social engineering a user into connecting to a fake VNC Server. The VNC Viewer application they are using will then hang, until terminated, but no memory leak occurs - the resources are freed once the hung process is terminated and the resource usage is constant during the hang. Only the process that is connected to the fake Server is affected. This is an application bug, not a security issue

Priority: MEDIUM
CVSS v3: 6.5
Component:
Publish Date: Sep 17, 2021
Related ID: --
CVSS v2: MEDIUM
Modified Date: Sep 17, 2021

Find out more about CVE-2021-41380 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Not Vulnerable -- -- --
Wind River Linux 8 Not Vulnerable -- -- --
Wind River Linux 9 Not Vulnerable -- -- --
Wind River Linux 7 Not Vulnerable -- -- --
Wind River Linux LTS 21 Not Vulnerable -- -- --
Wind River Linux LTS 22 Not Vulnerable -- -- --
Wind River Linux LTS 18 Not Vulnerable -- -- --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Not Vulnerable -- -- --
Wind River Linux 6 Not Vulnerable -- -- --
Wind River Linux LTS 23 Not Vulnerable -- -- --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --
Helix Virtualization Platform Cert Edition
Helix Virtualization Platform Cert Edition Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
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