Description
The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass filesystem write permissions and consequently gain privileges via a crafted application that leverages read permissions, and makes mmap and ptrace system calls.
Metrics
CVSS 2.0 6.9/10
AV:L/AC:M/Au:N/C:C/I:C/A:CWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://svnweb.freebsd.org/base?view=revision&revision=251901
- http://www.debian.org/security/2013/dsa-2714
- http://www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.ascVendor Advisory
- http://svnweb.freebsd.org/base?view=revision&revision=251901
- http://www.debian.org/security/2013/dsa-2714
- http://www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.ascVendor Advisory
Timeline
- Published
- Jul 2, 2013
- Last modified
- Jun 16, 2026
- NVD status
- Modified