search for: afl

...L. (I haven't figured out what interface to make for fuzzing internal functions which take char buffers that can have nuls. The SQL interface will only be able to handle valid utf8 encoded strings which contain no nuls.) I have some feedback of things that are a bit awkard or that I miss from AFL. Some of this may actually be there but I'm just not using it right? 1) One minor things, it's a bit of a pain to construct the argv when you're not invoking it on the command line. Not a big deal but it would be nice to bypass that and just allow the caller to set the variables direct...

On Wed, Mar 18, 2020 at 01:46:14PM -0400, habib dan aouta wrote: > Hello Richard, > > Hope you are doing well. My name is Habib and I am current student > at the University of North Carolina at Charlotte(U.S). I am > currently following your Libnbd client fuzzing tutorial from the > Wordpress articles

...te arrays. wined3d: Get rid of the redundant "output_signature" parameter to shader_set_function(). wined3d: Store shader signatures directly in struct wined3d_shader_desc. d3d11: Get rid of struct d3d_shader_info. d3d11: Validate offsets and sizes in parse_dxbc() (AFL). d3d10: Validate offsets and sizes in parse_dxbc() (AFL). d3d11: Validate offsets and sizes in shader_parse_signature() (AFL). d3d10: Validate offsets and sizes in shader_parse_signature() (AFL). d3d11: Introduce a helper function to allocate arrays. d3d10: Introduce...

...re experience with libfuzzer and finding that I have a couple of questions: - How does libfuzzer decide to write a new test file? What distinguishes this one from all the other cases for which new test inputs were not written? Must be something about the path taken through the code? - Can I use afl-cmin or is there something similar for libFuzzer? I find that sometimes I get an enormous amount of tests and it becomes unmanageable. - sometimes my process being tested appears to deadlock. A common feature seems to be that AlarmCallback is allocating memory and as a consequence the ASan code...

...ge in the control flow graph has been discovered with the > given input. > > So if I'm seeing tens of thousands of distinct test files, that represents tens of thousands of distinct edges? Does the CFG span functions/methods or are they scoped more sanely? > >> - Can I use afl-cmin or is there something similar for libFuzzer? >> > > I've never tried that. I'd expect you can. > libFuzzer and afl both use plain files to store the corpus. > > I think afl-cmin uses some afl-specific behavior. > I find that sometimes I get an enormous amount...

...to take one row from each data.frame based upon the data in a particular column (i.e. it matches a symbol). For example: > str(database) List of 68 $ X2011.01.11:'data.frame': 500 obs. of 5 variables: ..$ Symbol : chr [1:500] "MMM" "ACE" "AES" "AFL" ... ..$ Price : num [1:500] 87.7 60.7 13.1 55.7 15.6 ... ..$ Shares.Out: num [1:500] 7.15e+08 3.39e+08 7.88e+08 4.71e+08 1.10e+08 ... ..$ Float : num [1:500] 7.13e+08 3.38e+08 6.61e+08 4.60e+08 1.09e+08 ... ..$ Market.Cap: num [1:500] 6.27e+10 2.06e+10 1.04e+10 2.62e+10 1.72e+...

...Means(out) } sim.sp(df2007.5k.s2,CM,1,1000) Error in nb2listw(dist60, style = "B") : Empty neighbour sets found And, here are my partial data and addition information just in case. > df2007.5k.s2[1:5,] Longitude Latitude Ring stage2 SBA corn sbn w.wit oats afl dbn vg.frt fidle grs.pstr wdlnd nlcd.ow nlcd.dec 821 419.9678 496.3359 5000 2 0.2041200 6.873500 6.515908 5.861865 5.139832 6.260552 5.087444 0.000000 4.818602 6.897949 4.927745 7.073408 7.348551 822 440.9583 533.2685 5000 2 1.1832698 6.829823 6.402711 4.098471 5.660730 6....

...lly provide bindings for Libfuzzer so you can I can have Libfuzzer provide all the test cases to repeatedly call the internal functions on. Is there any example of doing something like this already? Am I taking a crazy approach? There are other approaches possible. It would be nice if I could run afl or libfuzzer on a client program and have the client program tell afl or libfuzzer the pid of the server to watch and then request test cases to feed to the server. That seems like it would be a more flexible approach for a lot of use cases where the server requires setting up a complex environment...

...the actual bot [2] only tests the fuzzer itself over a well-known set of bugs in standard software (eg. Heartbleed [3] seems to be among them). Has there actually ever been a buildbot that fuzzes clang/LLVM itself? Another (obvious?) fuzzing candidate would be the LLVM's bitcode reader. I ran afl-fuzz on it and it found lots of failed assertions within seconds. Isn't fuzzing done on a regular basis as [1] suggests should be done? Should I report the crashes found by it? Michael [1] http://blog.llvm.org/2015/04/fuzz-all-clangs.html [2] http://lab.llvm.org:8011/builders/sanitizer-x86_6...

...9; (which didn't) make target have been merged into a single 'check' target (which works out-fof-tree). * Test tones for the replaygain tests are now generated with portable C code instead of an awk script (that was not portable). * Fix a NULL pointer de-reference found with the AFL fuzzer. I'll be catching up with email in the next couple of days. Cheers, Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/

Thanks for your comments, Ralph and Jean-Marc. Please find attached the amended patch: - decodes a sequence of input packets rather than just one (I'm planning on using the Opus test vectors as the seed corpus) - decides on decoder setup and FEC independently of the packet data - uses Opus functions to parse ToC Cheers, Felicia On Sun, Jan 29, 2017 at 9:48 PM Jean-Marc Valin <jmvalin at

...will become public in ~4 days: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=370 If we want to run some more llvm fuzzers on OSS-Fuzz I'd be happy to (help) set them up. > > > > Another (obvious?) fuzzing candidate would be the LLVM's bitcode > > reader. I ran afl-fuzz on it and it found lots of failed assertions > > within seconds. Isn't fuzzing done on a regular basis as [1] suggests > > should be done? Should I report the crashes found by it? > > The bitcode reader is known to not be robust against malformed inputs. > Yes, I afra...

...es in libXfont ======================================== Description: ============ Ilja van Sprundel, a security researcher with IOActive, has discovered an issue in the parsing of BDF font files by libXfont. Additional testing by Alan Coopersmith and William Robinet with the American Fuzzy Lop (afl) tool uncovered two more issues in the parsing of BDF font files. As libXfont is used by the X server to read font files, and an unprivileged user with access to the X server can tell the X server to read a given font file from a path of their choosing, these vulnerabilities have the potential to...

...h1 Segmentation fault (core dumped) $ cat << EOF > crash2 *filter -A INPUT -ftf -j ACCEPT COMMIT EOF $ ./xtables-multi iptables-restore -t < crash2 *** Error in `./xtables-multi': free(): invalid pointer: 0x00000000006ab673 *** Aborted (core dumped) Issue has been discovered with AFL (http://lcamtuf.coredump.cx/afl/). -- You are receiving this mail because: You are watching all bug changes. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.netfilter.org/pipermail/netfilter-buglog/attachments/20170317/8ccb6690/attachment.html>

So I installed Libnbd which worked fined and then I was trying to run Libnbd-fuzz-wrapper.c and with afl using : afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -M fuzz01 \./fuzzing/libnbd-fuzz-wrapper @@ when I try that command it gives me an error saying Libnbd-fuzz-wrapper.c is not an EFL binary. Then I tried to compile Libnbd-fuzz-wrapper.c first into an executable file and then I get the...

So I installed Libnbd which worked fined and then I was trying to run Libnbd-fuzz-wrapper.c and with afl using : afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -M fuzz01 \./fuzzing/libnbd-fuzz-wrapper @@ when I try that command it gives me an error saying Libnbd-fuzz-wrapper.c is not an EFL binary. Then I tried to compile Libnbd-fuzz-wrapper.c first into an executable file and then I get the...

...Fix seek bug. Janne Hyv?rinen reported a problem with seeking as a result of the fix for CVE-2014-9028. This is a different solution to the issue that should not adversely affect seeking. This version of the fix for the above CVE has been extensively fuzz tested using afl (http://lcamtuf.coredump.cx/afl/). Cheers, Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/

Hi all, While playing with libFuzzer, it's a little cumbersome to having to copy the buffer just in order to null-terminate it. Is a null-terminated buffer an often-enough usage scenario to warrant a libFuzzer commandline configuration switch to always generate a null-terminated test case? Thanks, Johan -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi list, I downloaded and tried to install Mongrel (latest stable version) from the -win32 gem. Platform is Win2K. It said it needed daemons so got and installed that. Then it said it needed cgi_multipart_eol_fix (I think that was the name, not at my machine now, can confirm later and repost if needed). Googled for that but couldn''t find it. (Don''t have net connectivitity for a

Ok, I'll submit a patch to turn that into a report_fatal_error saying you can't start an abbrev with an array or blob. Thanks, Filipe F On Fri, Jan 23, 2015 at 2:12 PM, Rafael Espíndola < rafael.espindola at gmail.com> wrote: > The restriction looks reasonable: A record starts with a code. The code > can be encoded as a literal or be part of the abbreviation. > >