CVE-2005-4783

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: 2005-12-31 · updated 2026-06-16

Description

kernfs_xread in kernfs_vnops.c in NetBSD before 20050831 does not check for a negative offset when reading the message buffer, which allows local users to read arbitrary kernel memory.

Affected products

Netbsd: 1.6, 2.0, 2.0.3, 2.1

References

http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c.diff?r1=1.110&r2=1.111&f=h
http://mail-index.netbsd.org/netbsd-announce/2005/10/31/0000.html
http://releng.netbsd.org/cgi-bin/req-3.cgi?show=727
http://securitytracker.com/id?1015132
http://www.osvdb.org/20729
http://www.packetstormsecurity.org/0601-advisories/NetBSD-SA2006-001.txt
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c.diff?r1=1.110&r2=1.111&f=h
http://mail-index.netbsd.org/netbsd-announce/2005/10/31/0000.html
http://releng.netbsd.org/cgi-bin/req-3.cgi?show=727
http://securitytracker.com/id?1015132

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