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Home CVE Database CVE-2021-34557

CVE-2021-34557

Description

XScreenSaver 5.45 can be bypassed if the machine has more than ten disconnectable video outputs. A buffer overflow in update_screen_layout() allows an attacker to bypass the standard screen lock authentication mechanism by crashing XScreenSaver. The attacker must physically disconnect many video outputs.

Priority: LOW
CVSS v3: 4.6
Component: xscreensaver
Publish Date: Jun 10, 2021
Related ID: --
CVSS v2: MEDIUM
Modified Date: Jun 11, 2021

Find out more about CVE-2021-34557 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 Won't Fix -- -- --
Wind River Linux LTS 22 Won't Fix -- -- --
Wind River Linux LTS 18 Not Vulnerable -- -- --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Won't Fix -- -- --
Wind River Linux 6 Not Vulnerable -- -- --
Wind River Linux LTS 23 Won't Fix -- -- --
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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