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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2021-06-10T15:54:35
Updated: 2024-08-04T00:12:50.416Z
Reserved: 2021-06-10T00:00:00
Link: CVE-2021-34557
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-06-10T16:15:08.227
Modified: 2024-11-21T06:10:40.827
Link: CVE-2021-34557
Redhat
No data.