Description
The kernfs_xread function in kernfs in NetBSD 1.6 through 2.1, and OpenBSD 3.8, does not properly validate file offsets against negative 32-bit values that occur as a result of truncation, which allows local users to read arbitrary kernel memory and gain privileges via the lseek system call.
Metrics
CVSS 2.0 4.6/10
AV:L/AC:L/Au:N/C:P/I:P/A:PAffected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://secunia.com/advisories/18388Vendor Advisory
- http://secunia.com/advisories/18712Vendor Advisory
- http://securityreason.com/securityalert/405
- http://www.osvdb.org/22293
- http://www.securityfocus.com/archive/1/423827/100/0/threaded
- http://www.securityfocus.com/bid/16173Patch
- http://www.securitylab.net/research/2006/02/advisory_netbsd_openbsd_kernfs.htmlVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24035
- http://secunia.com/advisories/18388Vendor Advisory
- http://secunia.com/advisories/18712Vendor Advisory
- http://securityreason.com/securityalert/405
- http://www.osvdb.org/22293
- http://www.securityfocus.com/archive/1/423827/100/0/threaded
- http://www.securityfocus.com/bid/16173Patch
- http://www.securitylab.net/research/2006/02/advisory_netbsd_openbsd_kernfs.htmlVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24035
Timeline
- Published
- Jan 9, 2006
- Last modified
- Jun 16, 2026
- NVD status
- Modified