CVE-2006-6013: Dragonflybsd

Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Integer signedness error in the fw_ioctl (FW_IOCTL) function in the FireWire (IEEE-1394) drivers (dev/firewire/fwdev.c) in various BSD kernels, including DragonFlyBSD, FreeBSD 5.5, MidnightBSD 0.1-CURRENT before 20061115, NetBSD-current before 20061116, NetBSD-4 before 20061203, and TrustedBSD, allows local users to read arbitrary memory contents via certain negative values of crom_buf->len in an FW_GCROM command. NOTE: this issue has been labeled as an integer overflow, but it is more like an integer signedness error.

Affected products

• Dragonflybsd Dragonflybsd: any version
• Freebsd Freebsd: version 5.5 only
• Midnightbsd Midnightbsd: version 0.1-current only
• Netbsd Netbsd: version 2.0.4 only
• Trustedbsd Trustedbsd: any version

Published 2006-11-21. Last modified 2026-06-16.