This bug was fixed in the package binutils - 2.30-20ubuntu2
---------------
binutils (2.30-20ubuntu2) cosmic; urgency=medium
* Fix PR gprof/23056, memory corruption in gprof. LP: #1763098.
* Fix PR binutils/23054, memory corruption in as. LP: #1763096.
* Fix PR ld/23055, memory corruption in ld. LP: #1763094.
binutils (2.30-20ubuntu1) cosmic; urgency=medium
* Merge with Debian; remaining changes:
- Build from upstream sources.
binutils (2.30-20) unstable; urgency=medium
* Update, taken from the 2.30 branch 20180516.
- Fix PR binutils/23109, disassembly mask for vector sdot on AArch64.
- Fix uninitialised memory acccess in COFF bfd backend.
- Update Portuguese translations.
binutils (2.30-19) unstable; urgency=medium
* Build-depend on procps.
-- Matthias Klose <d...@ubuntu.com> Wed, 16 May 2018 13:03:58 -0400
** Changed in: binutils (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1763096
Title:
Multiple memory corruption in as-new (binuitils-2.30-15ubuntu1)
Status in binutils package in Ubuntu:
Fix Released
Status in binutils source package in Bionic:
Confirmed
Bug description:
Dear all,
The following binutils as-new 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 ./as-new $file
```
We can verify those issues for as-new 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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