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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://secunia.com/advisories/18712 ↗
- http://www.securitylab.net/research/2006/02/advisory_netbsd_openbsd_kernfs.html ↗
- http://securityreason.com/securityalert/405 ↗
- http://www.securityfocus.com/bid/16173 ↗
- http://secunia.com/advisories/18388 ↗
- http://www.osvdb.org/22293 ↗
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24035 ↗
- http://www.securityfocus.com/archive/1/423827/100/0/threaded ↗