Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | 9.0 |
Related Weaknesses (CWE)
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
FAQ
What is CVE-2013-2171?
CVE-2013-2171 is a vulnerability with a CVSS score of 6.9 (MEDIUM). 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 me...
How severe is CVE-2013-2171?
CVE-2013-2171 has been rated MEDIUM with a CVSS base score of 6.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-2171?
Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.