Vulnerability in FreeBSD
CVE-2013-2171
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.9 (Medium). Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.069 (93.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.069 · newest: 0.069 · change: 0.000
Affected products
- FreeBSD — versions 9.0, 9.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.asc (vendor-advisory, Vendor Advisory)
- www.debian.org/security/2013/dsa-2714 (vendor-advisory)
- svnweb.freebsd.org/base
Frequently asked questions
- What is CVE-2013-2171?
- CVE-2013-2171 is a vulnerability in FreeBSD, classified under CWE-264. Published 2013-07-02.
- Is CVE-2013-2171 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.