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Fencer Intel
medium 6.9

CVE-2013-2171 json

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 prope…

published 13y ago modified 4mo ago also EUVD-2013-2131

cvss
6.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.9%
EPSS 6.9% chance of exploitation in 30 days, percentile 94%
public exploits
3
Metasploit and Exploit-DB

Summary

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.

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Timeline

  1. First public exploit (Metasploit exploit/freebsd/local/mmap)
  2. Published

Exploit prediction

6.94% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/freebsd/local/mmap FreeBSD 9 Address Space Manipulation Privilege Escalation metasploit exploit, great rank, 2013-06-18
  • EDB-26454 FreeBSD 9 - Address Space Manipulation Privilege Escalation (Metasploit) local, 2013-06-26
  • EDB-26368 FreeBSD 9.0 < 9.1 - 'mmap/ptrace' Local Privilege Escalation local, 2013-06-21

CVSS scores

assigned by version score vector
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.