What’s Vulnerable › Vulnerabilities

CVE-2006-6013

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2006-11-21 · updated 2026-06-16

Description

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: all versions
• FreeBSD: 5.5
• Midnightbsd: 0.1-current
• Netbsd: 2.0.4
• Trustedbsd: all versions

References

• http://archives.neohapsis.com/archives/fulldisclosure/2006-11/0261.html
• http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/dev/ieee1394/fwdev.c
• http://mail-index.netbsd.org/tech-security/2006/11/16/0001.html
• http://mail-index.netbsd.org/tech-security/2006/12/14/0002.html
• http://secunia.com/advisories/22917
• http://security.freebsd.org/advisories/FreeBSD-SA-06:25.kmem.asc
• http://securitytracker.com/id?1017344
• http://www.dragonflybsd.org/cvsweb/src/sys/bus/firewire/fwdev.c
• http://www.kernelhacking.com/bsdadv1.txt
• http://www.securityfocus.com/archive/1/451629/100/0/threaded
• http://www.securityfocus.com/archive/1/451637/100/0/threaded
• http://www.securityfocus.com/archive/1/451677/100/0/threaded

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