CVE-2001-0191

critical

Description

gnuserv before 3.12, as shipped with XEmacs, does not properly check the specified length of an X Windows MIT-MAGIC-COOKIE cookie, which allows remote attackers to execute arbitrary commands via a buffer overflow, or brute force authentication by using a short cookie length.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/6056

https://euvd.enisa.europa.eu/vulnerability/EUVD-2001-0191

http://www.redhat.com/support/errata/RHSA-2001-011.html

http://www.redhat.com/support/errata/RHSA-2001-010.html

http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-019.php3

http://archives.neohapsis.com/archives/bugtraq/2001-02/0030.html

Details

Source: Mitre, NVD

Published: 2001-05-03

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.05496