Multiple unspecified vulnerabilities in FreeBSD 6 before 6.4-STABLE, 6.3 before 6.3-RELEASE-p7, 6.4 before 6.4-RELEASE-p1, 7.0 before 7.0-RELEASE-p7, 7.1 before 7.1-RC2, and 7 before 7.1-PRERELEASE allow local users to gain privileges via unknown attack vectors related to function pointers that are "not properly initialized" for (1) netgraph sockets and (2) bluetooth sockets.

Per http://security.freebsd.org/advisories/FreeBSD-SA-08:13.protosw.asc

Solution

Perform one of the following:

1) Upgrade your vulnerable system to 6-STABLE, or 7-STABLE, or to the
RELENG_7_0, RELENG_6_4, or RELENG_6_3 security branch dated after the
correction date.

2) To patch your present system:

The following patches have been verified to apply to FreeBSD 6.3, 6.4,
and 7.0 systems.

a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.

[FreeBSD 6.x]
# fetch http://security.FreeBSD.org/patches/SA-08:13/protosw6x.patch
# fetch http://security.FreeBSD.org/patches/SA-08:13/protosw6x.patch.asc

[FreeBSD 7.x]
# fetch http://security.FreeBSD.org/patches/SA-08:13/protosw.patch
# fetch http://security.FreeBSD.org/patches/SA-08:13/protosw.patch.asc

b) Apply the patch.

# cd /usr/src
# patch < /path/to/patch

c) Recompile your kernel as described in
<URL:http://www.FreeBSD.org/handbook/kernelconfig.html> and reboot the
system.