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Unrated severityNVD Advisory· Published Jul 2, 2013· Updated Jun 16, 2026

CVE-2013-2171

CVE-2013-2171

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.

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Affected products

4
  • FreeBSD/FreeBSD4 versions
    cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:9.1:p4:*:*:*:*:*:*
    • (no CPE)range: >=9.0, <=9.1-RELEASE-p4

Patches

Vulnerability mechanics

References

3

News mentions

0

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