CVE-2005-4783 json
kernfs_xread in kernfs_vnops.c in NetBSD before 20050831 does not check for a negative offset when reading the message buffer, which allows…
published 2005-12-31 20 y ago modified 2026-06-16 4 mo ago also EUVD-2005-4776
- cvss
- 2.1
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- securitytracker.com/id?1015132 patch
- cvsweb.netbsd.org/bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c.diff?r1=1.… patch
- releng.netbsd.org/cgi-bin/req-3.cgi?show=727 patch
- osvdb.org/20729 patch
- cvsweb.netbsd.org/bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c patch
- packetstormsecurity.org/0601-advisories/NetBSD-SA2006-001.txt advisory
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
References
-
packetstormsecurity.org
/0601-advisories/NetBSD-SA2006-001.txt
vendor-advisory, patch
-
securitytracker.com
/id?1015132
vdb-entry, patch
-
cvsweb.netbsd.org
/bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c.diff?r1=1.110&r2=1.111&f=h
patch
-
releng.netbsd.org
/cgi-bin/req-3.cgi?show=727
patch
-
osvdb.org
/20729
vdb-entry, patch
-
cvsweb.netbsd.org
/bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c
patch
-
mail-index.netbsd.org
/netbsd-announce/2005/10/31/0000.html
mailing-list
Sources
- CVE List CVE-2005-4783
- NVD CVE-2005-4783
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