DescriptionThe 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.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, web search, more)
NVD severitymedium (attack range: local)
Debian Bugs712664
Debian/oldoldstablenot vulnerable.
Debian/oldstablenot vulnerable.
Debian/stablenot known to be vulnerable.
Debian/testingnot known to be vulnerable.
Debian/unstablenot known to be vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
kfreebsd-8 (PTS)squeeze8.1+dfsg-8+squeeze4fixed
squeeze (security)8.1+dfsg-8+squeeze3fixed
kfreebsd-9 (PTS)wheezy9.0-10+deb70.7fixed
wheezy (security)9.0-10+deb70.10fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
kfreebsd-8source(unstable)(not affected)


- kfreebsd-8 <not-affected> (Only affects 9.x)

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