CVE-2021-34557

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Source
https://cve.org/CVERecord?id=CVE-2021-34557
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34557.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-34557
Downstream
DEBIAN (1)
MGASA (1)
SUSE (2)
UBUNTU (1)
Related
SUSE (2)
Published
2021-06-10T16:15:08Z
Modified
2026-04-16T04:35:19Z
Severity
  • 4.6 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34557.json"
unresolved_ranges 
[
    {
        "events":  [
            {
                "introduced":  "0"
            },
            {
                "last_affected":  "5.45"
            }
        ]
    },
    {
        "events":  [
            {
                "introduced":  "0"
            },
            {
                "last_affected":  "33"
            }
        ]
    }
]