[Bug 1763102] Re: Multiple memory corruptions in objdump (binuitils-2.30-15ubuntu1)

[Simon Wörner]

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12697

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12698

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12699

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12700

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Title:
  Multiple memory corruptions in objdump (binuitils-2.30-15ubuntu1)

Status in binutils package in Ubuntu:
  Confirmed

Bug description:
  Dear all,
  The following binutils objdump memory corruptions were found by a modified version of the kAFL fuzzer (https://github.com/RUB-SysSec/kAFL). I have attached the crashing inputs and each ASAN report.

  Steps to reproduce:

  Build current verison of binutils:
  ```
  pull-lp-source binutils
  cd binutils-2.30
  CC=clang CXX=clang++ CFLAGS="-fsanitize=address -fsanitize-recover=address -ggdb" CXXFLAGS="-fsanitize=address -fsanitize-recover=address -ggdb" LDFLAGS="-fsanitize=address" ./configure
  CC=clang CXX=clang++ CFLAGS="-fsanitize=address -fsanitize-recover=address -ggdb" CXXFLAGS="-fsanitize=address
  -fsanitize-recover=address -ggdb" LDFLAGS="-fsanitize=address" make
  ```

  Run inputs under ASAN:

  ```
  ASAN_OPTIONS=halt_on_error=false:allow_addr2line=true ./objdump --dwarf-check -C -g -f -dwarf -x $file
  ```

  
  We can verify those issues for objdump binuitils-2.30-15ubuntu1 (Ubuntu 16.04.4 LTS / sources from "pull-lp-source bintuils").

  Credits: Sergej Schumilo, Cornelius Aschermann (both of Ruhr-
  Universität Bochum)

  Best regards,
  Sergej Schumilo

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