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https://github.com/SELinuxProject/selinux
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410634d650
Nicolas Iooss found while fuzzing secilc with AFL that using an attribute as a child in a typebounds statement will cause a segfault. This happens because the child datum is assumed to be part of a cil_type struct when it is really part of a cil_typeattribute struct. The check to verify that it is a type and not an attribute comes after it is used. This bug effects user and role bounds as well because they do not check whether a datum refers to an attribute or not. Add checks to verify that neither the child nor the parent datum refer to an attribute before using them in user, role, and type bounds. Signed-off-by: James Carter <jwcart2@tycho.nsa.gov> |
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| checkpolicy | ||
| libselinux | ||
| libsemanage | ||
| libsepol | ||
| policycoreutils | ||
| scripts | ||
| secilc | ||
| sepolgen | ||
| .gitignore | ||
| CleanSpec.mk | ||
| Makefile | ||
| README | ||
Please submit all bug reports and patches to selinux@tycho.nsa.gov. Subscribe via selinux-join@tycho.nsa.gov. Build dependencies on Fedora: yum install audit-libs-devel bison bzip2-devel dbus-devel dbus-glib-devel flex flex-devel flex-static glib2-devel libcap-devel libcap-ng-devel pam-devel pcre-devel python-devel setools-devel swig ustr-devel xmlto redhat-rpm-config To build and install everything under a private directory, run: make DESTDIR=~/obj install install-pywrap To install as the default system libraries and binaries (overwriting any previously installed ones - dangerous!), on x86_64, run: make LIBDIR=/usr/lib64 SHLIBDIR=/lib64 install install-pywrap relabel or on x86 (32-bit), run: make install install-pywrap relabel This may render your system unusable if the upstream SELinux userspace lacks library functions or other dependencies relied upon by your distribution. If it breaks, you get to keep both pieces.