CVE-2004-0814: Linux Kernel

Low severity, CVSS 1.2. EPSS: 0.7% chance of exploitation in the next 30 days.

Multiple race conditions in the terminal layer in Linux 2.4.x, and 2.6.x before 2.6.9, allow (1) local users to obtain portions of kernel data via a TIOCSETD ioctl call to a terminal interface that is being accessed by another thread, or (2) remote attackers to cause a denial of service (panic) by switching from console to PPP line discipline, then quickly sending data that is received during the switch.

Affected products

• Linux Linux Kernel: version 2.2.0 only; version 2.2.1 only; version 2.2.2 only; version 2.2.3 only; version 2.2.7 only; version 2.2.8 only; …
• Ubuntu Ubuntu Linux: version 4.1 only

Published 2004-12-23. Last modified 2026-06-16.