OOM-Bug in cxxfilt (binuitils-2.30-15ubuntu1)

Bug #1763101 reported by Sergej Schumilo on 2018-04-11
256
This bug affects 1 person
Affects Status Importance Assigned to Milestone
binutils (Ubuntu)
Undecided
Unassigned

Bug Description

Dear all,
The following binutils cxxfilt OOM bug was found by a modified version of the kAFL fuzzer (https://github.com/RUB-SysSec/kAFL). I have attached the input and an 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 ./cxxfilt -t < oom
```

We can verify this issue for cxxfilt binuitils-2.30-15ubuntu1 (Ubuntu 16.04.4 LTS / sources from "pull-lp-source bintuils") on an Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz server machine with 32GB RAM.

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

Best regards,
Sergej Schumilo

CVE References

Sergej Schumilo (schumilo) wrote :
Marc Deslauriers (mdeslaur) wrote :

Thanks for taking the time to report this bug and helping to make Ubuntu better.

Please report this issue to the upstream binutils developers by filing a bug at https://sourceware.org/bugzilla/

Once the binutils team has evaluated the issue, and a proper fix is available, we will release a security update for Ubuntu.

Sergej Schumilo (schumilo) wrote :
Seth Arnold (seth-arnold) wrote :

Reported to libiberty developers:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85453

information type: Private Security → Public Security
Changed in binutils (Ubuntu):
status: New → Confirmed
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