SYS-OSS/FRET-LibAFL
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Token mutations: set MutationResult for CmpValues::Bytes (#838)

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* token mutations: set MutationResult for CmpValues::Bytes

I haven't measured this and am not even sure if CmpValues::Bytes is
currently populated by any executor, but this seems like an oversight.

* replace dead zlib-1.2.12.tar.gz URL

See https://zlib.net/fossils/OBSOLETE
This commit is contained in:
Mrmaxmeier 2022-10-14 13:03:57 +02:00 committed by GitHub
parent fbff363842
commit f5cc354102
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3 changed files with 6 additions and 4 deletions
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2
fuzzers/frida_libpng/README.md
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@ -38,7 +38,7 @@ You can also fuzz libpng-1.6.37 on windows with frida mode
### To build it with visual studio ### To build it with visual studio
1. Install clang for windows (make sure you add LLVM to the system path!) 1. Install clang for windows (make sure you add LLVM to the system path!)
[https://github.com/llvm/llvm-project/releases/tag/llvmorg-12.0.1](https://github.com/llvm/llvm-project/releases/tag/llvmorg-12.0.1) [https://github.com/llvm/llvm-project/releases/tag/llvmorg-12.0.1](https://github.com/llvm/llvm-project/releases/tag/llvmorg-12.0.1)
2. Download libpng-1.6.37[https://deac-fra.dl.sourceforge.net/project/libpng/libpng16/1.6.37/libpng-1.6.37.tar.xz] and zlib [https://zlib.net/zlib-1.2.11.tar.gz] into this directory, and rename `zlib-1.2.11` directory to `zlib`. 2. Download libpng-1.6.37[https://deac-fra.dl.sourceforge.net/project/libpng/libpng16/1.6.37/libpng-1.6.37.tar.xz] and zlib [https://zlib.net/fossils/zlib-1.2.11.tar.gz] into this directory, and rename `zlib-1.2.11` directory to `zlib`.
3. Build libpng1.6.37 3. Build libpng1.6.37
- Open libpng-1.6.37/projects/vstudio/vstudio.sln - Open libpng-1.6.37/projects/vstudio/vstudio.sln

4
fuzzers/qemu_arm_launcher/Makefile.toml
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@ -20,8 +20,10 @@ windows_alias = "unsupported"
[tasks.zlib_unix_wget] [tasks.zlib_unix_wget]
condition = { files_not_exist = [ "./zlib-1.2.12" ] } condition = { files_not_exist = [ "./zlib-1.2.12" ] }
script_runner="@shell" script_runner="@shell"
# NOTE: There's no specific reason we're using an old version of zlib,
# but newer versions get moved to fossils/ after a while.
script=''' script='''
wget http://www.zlib.net/zlib-1.2.12.tar.gz wget https://zlib.net/fossils/zlib-1.2.12.tar.gz
tar -xvf zlib-1.2.12.tar.gz tar -xvf zlib-1.2.12.tar.gz
''' '''

4
libafl/src/mutators/token_mutations.rs
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@ -567,6 +567,7 @@ where
while size != 0 { while size != 0 {
if v.0[0..size] == input.bytes()[i..i + size] { if v.0[0..size] == input.bytes()[i..i + size] {
buffer_copy(input.bytes_mut(), &v.1, 0, i, size); buffer_copy(input.bytes_mut(), &v.1, 0, i, size);
result = MutationResult::Mutated;
break 'outer; break 'outer;
} }
size -= 1; size -= 1;
@ -575,6 +576,7 @@ where
while size != 0 { while size != 0 {
if v.1[0..size] == input.bytes()[i..i + size] { if v.1[0..size] == input.bytes()[i..i + size] {
buffer_copy(input.bytes_mut(), &v.0, 0, i, size); buffer_copy(input.bytes_mut(), &v.0, 0, i, size);
result = MutationResult::Mutated;
break 'outer; break 'outer;
} }
size -= 1; size -= 1;
@ -583,8 +585,6 @@ where
} }
} }
//println!("{:?}", result);
Ok(result) Ok(result)
} }
} }