CVE-2021-34557 (GCVE-0-2021-34557)
Vulnerability from cvelistv5
Published
2021-06-10 15:54
Modified
2024-08-04 00:12
Severity ?
Summary
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
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2021/06/11/1Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2021/07/06/2Exploit, Mailing List, Third Party Advisory
cve@mitre.orghttps://github.com/QubesOS/qubes-issues/issues/6595Issue Tracking, Third Party Advisory
cve@mitre.orghttps://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-068-2021.txtExploit, Third Party Advisory
cve@mitre.orghttps://github.com/QubesOS/qubes-xscreensaver/blob/master/0001-Fix-updating-outputs-info.patchPatch, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TC4QB7TRS4GS7LDXQQ4PC6J3LVFJYISV/
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2021/06/05/1Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/06/11/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/07/06/2Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/QubesOS/qubes-issues/issues/6595Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-068-2021.txtExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/QubesOS/qubes-xscreensaver/blob/master/0001-Fix-updating-outputs-info.patchPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TC4QB7TRS4GS7LDXQQ4PC6J3LVFJYISV/
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2021/06/05/1Exploit, Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

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}


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