| Vulnerability Name: | CCN-4762 | ||||||
| Published: | 2000-06-19 | ||||||
| Updated: | 2000-06-19 | ||||||
| Summary: | XDM and derivative packages (KDM and WDM) shipped with X Windows System are vulnerable to a buffer overflow in the xdmcp.c error handling code. The send_failed method copies a host name into a buffer without verifying sufficient memory space. By sending over 256 characters, a remote attacker can overflow the buffer and gain access to the system. If XDM is run as root, the attacker could gain root privileges. It may be possible to cause a denial of service by crashing XDM. | ||||||
| CVSS v3 Severity: | 10.0 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
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| CVSS v2 Severity: | 10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
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| Vulnerability Consequences: | Gain Access | ||||||
| References: | Source: CCN Type: BugTraq Mailing List, Mon Jun 19 2000 - 17:51:43 CDT XFree86: xdm flaw; present in kdm Source: CCN Type: RHSA-2001-071 New updated XFree86 packages available Source: XF Type: UNKNOWN xdm-xdmcp-remote-bo(4762) | ||||||
| Vulnerable Configuration: | Configuration CCN 1: Denotes that component is vulnerable | ||||||
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