/[path-sandbox]/trunk/ChangeLog.0
Gentoo

Contents of /trunk/ChangeLog.0

Parent Directory Parent Directory | Revision Log Revision Log


Revision 48 - (hide annotations) (download)
Thu Apr 28 16:18:36 2005 UTC (9 years, 4 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 17153 byte(s)
* sandbox-1.2.2

1 ferringb 2 # ChangeLog for Path Sandbox
2     # Copyright 1999-2004 Gentoo Foundation; Distributed under the GPL v2
3     # $Header$
4    
5 azarah 48 * sandbox-1.2.2
6    
7 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
8     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
9     have issues; bug #90592.
10    
11 azarah 44 * sandbox-1.2.1
12    
13 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
14     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
15     Make sure all functions used in libsandbox.c is declared static. Define
16     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
17     linking with its object. Hopefully this will fix bug #90153.
18    
19 azarah 46 * sandbox-1.2
20    
21 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
22     Allow lchown a symlink in write-allowed path pointing to write-denied
23     target.
24    
25 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
26     Also show resolved symlink names in the log.
27    
28 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
29     Seems -nostdlib was the problem with the constructor/destructor - remove it
30     from Makefile.am, and change the constructor/destructor names again.
31    
32 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
33     Also rename the _init() and _fini() declarations.
34    
35 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
36     Fixup the constructor/destructor function names again (they should be _init()
37     and _fini() it seems, and not being called caused sandbox_lib_path to be
38     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
39     Add both the path in given SANDBOX_x variable, as well as its symlink
40     resolved path in init_env_entries(). Modify filter_path() to be able to
41     resolve paths without resolving symlinks, as well as to be able to resolve
42     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
43     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
44     for bug #31019 cause access violations if we try to remove a symlink that is
45     not in protected path, but points to a protected path. Fix a memory leak in
46     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
47     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
48     (pid_string was uninitialized). General syntax cleanups.
49    
50 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
51     infamous "pids file is not a regular file" w/out newline bug.
52    
53 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
54     Correct libc_version path detection, since it was screwing up if libdir !=
55     "/lib/".
56    
57     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
58 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
59    
60 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
61 azarah 31 Fix symbols.in not added to dist.
62    
63 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
64 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
65     White space fixes.
66    
67 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
68 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
69 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
70     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
71     for glibc and other libc's that use this. Update libsandbox.c to use these
72     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
73     process unset it.
74    
75 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
76 ferringb 28 killed off _init and _fini in favor of
77     void __attribute__ ((constructor)) init_func and
78     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
79    
80 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
81     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
82     having the hick-ups.
83    
84 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
85     Makefile.am: Fixed compilation.
86    
87 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
88     Gutted the bugger so it stops checking for a c++ and fortran compiler.
89     Do *not* regenerate aclocal.m4 for making a release until a better
90     solution is created.
91    
92 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
93     Removal of more hardcoded paths.
94    
95 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
96     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
97    
98     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
99 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
100     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
101     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
102     To get to a point of testing, automake && autoconf; created requisite files w/
103     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
104     /lib and /usr/lib/portage/bin.
105    
106 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
107     closing out bug #70225, potential overflow of the sandbox_pids_file var.
108    
109     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
110     (think it was at least) allows intermixing of code and data segments. bug #70351
111     should be fixed by this.
112    
113     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
114     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
115    
116     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
117     Seth Robertson that tracked down all adjuct flags for read operations that
118     do not invoke a write operation.
119    
120     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
121     Another fix from jstubbs regarding a free() on a stack variable for the
122     environment -- tracking now prevents extraneous free()'s segfault.
123    
124     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
125     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
126     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
127     Also remove the errno = ESUCCESS settings as documentation points out that
128     a library isn't allowed to do that.
129    
130     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
131     file_security_check() function to check random potential exploits on files
132     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
133     the 'system-crippling' exploits (bug 21923) and catches a few other
134     potential problems.
135    
136     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
137     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
138    
139     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
140     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
141     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
142    
143     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
144     Fix permissions and group of pids file and logs. Permissions should be 0664
145     and group should be 'portage'. Bug #34260.
146    
147     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
148     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
149     to the real execve (in our execve wrapper). Seems that on some arches (sparc
150     among others) do not allow us to tamper with the readonly copy passed to
151     execve, so pass our own copy of the environment. Bug #42290.
152    
153     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
154     Changed tail to head and added a notice about duration of glibc check.
155    
156     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
157     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
158     as there isn't a guarentee that it is dynamic.
159    
160     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
161     If 'file' passed to before_syscall(const char *func, const char *file) is
162     invalid, we should set errno to ENOENT, and not EINVAL. This should
163     close bug #32238.
164    
165     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
166     Fix a bug that occurs mainly on 64bit arch, where the file passed to
167     the functions we wrap, is invalid, and then cause canonicalize to pass
168     garbage to before_syscall(), thanks to great detective work from
169     Andrea Luzzardi <al@sig11.org> (bug #29846).
170    
171     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
172     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
173    
174     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
175     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
176     only checked the destination patch, and not the source, so we could move
177     a protected file to a unprotected directory, and then delete/modify it.
178     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
179    
180     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
181     Added python2.3 to the predict section/variable.
182    
183     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
184     sandbox.h, sandbox_futils.c :
185     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
186     it is not set, it will revert to its old value.
187    
188     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
189     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
190     rather than failing with a violation, bug #29748.
191    
192     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
193     Fix canonicalize() to ignore calls with path = "".
194    
195     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
196     sandbox_futils.c, canonicalize.c :
197     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
198     call handled strings larger than PATH_MAX (bug #21766). It however does not
199     work the same on 2.4 kernels.
200    
201     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
202     do not need the system call. We use the default getcwd() function via a
203     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
204     means the current directory was removed, OR that the the system call for
205     getcwd failed (curious is that it do not fail and return NULL or set
206     errno, but rather just truncate the retured directory - usually from the
207     start), and if so, we use the generic getcwd() function (__egetcwd). Note
208     that we do not use the generic version all the time, as it calls lstat()
209     a great number of times, and performance degrade much.
210    
211     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
212     libsandbox.c :
213     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
214    
215     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
216     create-localdecls :
217     When checking path names of files accessed, we need to canonicalize it, else
218     it may be a symlink in a 'write allowed' directory pointing to a file in a
219     directory we should not have write access to.
220    
221     With something like coreutils-5.0, we have two problems:
222     1) One of the tests checks if getcwd() can return a path longer than
223     PATH_MAX. This test then tries to create a dir which even while
224     created local (mkdir("conftest2")), it ends up being resolved with
225     a name that is much larger than PATH_MAX. The problem now is that
226     canonicalize() have undefined behaviour when the path was too long
227     (returned wrongly truncated paths, etc), and pass the wrong path to
228     before_syscall() (causing the bogus sandbox violations).
229     2) The ecanonicalize() function we used, along with the canonicalize()
230     function did not support longer than PATH_MAX. This is partly a
231     cause for 1), but the error checking (rather lack of it) of calls
232     to erealpath() in canonicalize() was the prime reason for 1).
233    
234     As we do not use this canonicalized name to call the function, we resolve this
235     by fixing canonicalize() to do better error checking, and ecanonicalize() as
236     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
237     While they will resolve paths properly now, and can check if a write/read is
238     allowed, the functions called from the sandboxed environment will still work
239     as expected.
240    
241     This should resolve bug #21766.
242    
243     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
244     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
245     it (bug #16298).
246    
247     Problem is that for some reason locale fopen's locale.alias with mode "rm".
248    
249     -------------------------------------------------------
250     nosferatu root # grep fopen locale.log
251     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
252     nosferatu root #
253     --------------------------------------------------------
254    
255     I checked the source of locale, but it have fopen with mode 'r', so
256     not sure where the "rm" mode comes from. Anyhow, changed the check in
257     before_syscall_open_char() to also see mode "rm" as readonly.
258    
259     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
260    
261     Add glibc-2.3 support.
262    
263     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
264    
265     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
266     operations releated to preload, as well as only try to modify ld.so.preload
267     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
268     not using ld.so.preload. Fix to not write this instance of sandbox's pid
269     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
270    
271     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
272    
273     Changed the LD to CC for hppa.
274    
275     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
276    
277     Killed the previous changes I made.
278    
279     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
280    
281     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
282    
283     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
284    
285     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
286    
287     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
288    
289     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
290     for this fix.
291    
292     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
293    
294     sandbox_futils defined a dirname() function that was masking the same
295     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
296     '/usr/lib/portage/bi/'). Fixed function to return expected results and
297     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
298     11231.
299    
300     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
301    
302     Fix a segfault in libsandbox.c if canonicalize() was called with
303     first parameter = NULL.
304    
305     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
306    
307     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
308     cleanup() for this.
309    
310     Change cleanup() in sandbox.c not to exit with fail status if
311     the pidsfile is missing. We really should still display sandbox
312     violations if they occured.
313    
314     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
315    
316     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
317     the last sandbox running.
318    
319     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
320    
321     Major cleanups to mainly libsandbox.c again.
322    
323     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
324    
325     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
326     parties involved should please contact me so that we can fix it.
327    
328     Add opendir wrapper to libsandbox.c.
329    
330     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
331    
332     Do some more cleanups to ecanonicalize(), as it dropped filenames in
333     rare cases (after my symlink cleanups), and caused glibc to bork.
334     These fixes went into canonicalize.c.
335    
336     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
337    
338     Fix spawn_shell() and main() in sandbox.c to properly return fail
339     status.
340    
341     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
342    
343     The new canonicalize() function in libsandbox.c also resolved symlinks,
344     which caused on cleaning sandbox errors if the symlink pointed to a
345     file in the live root. Ripped out canonicalize() and realpath() from
346     glibc; removed the symlink stuff, and changed them to ecanonicalize()
347     and erealpath().
348    
349     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
350    
351     Ripped out all the wrappers, and implemented those of InstallWatch.
352     Losts of cleanups and bugfixes. Implement a execve that forces
353     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
354     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
355     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
356     parts; it now have an install target.
357    
358     Reformat the whole thing to look somewhat like the reworked sandbox.c
359     and new sandbox.h and sandbox_futils.c from:
360    
361     Brad House <brad@mainstreetsoftworks.com>.
362    
363     Additional Copyrights now due to the InstallWatch code:
364    
365     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

Properties

Name Value
svn:eol-style native
svn:keywords Author Date Id Revision

  ViewVC Help
Powered by ViewVC 1.1.20