CVE-2021-34557

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Source

https://nvd.nist.gov/vuln/detail/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

Related

Published

2021-06-10T16:15:08Z

Modified

2024-11-21T06:10:40Z

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 updatescreenlayout() 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

Debian:11 / xscreensaver

Package

Name: xscreensaver
Purl: pkg:deb/debian/xscreensaver?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.45+dfsg1-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / xscreensaver

Package

Name: xscreensaver
Purl: pkg:deb/debian/xscreensaver?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.45+dfsg1-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / xscreensaver

Package

Name: xscreensaver
Purl: pkg:deb/debian/xscreensaver?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.45+dfsg1-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}