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GNU libiberty - Buffer Overflow
Source: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69687
The attached program binary causes a buffer overflow in cplus-dem.c when it tries to demangle specially crafted function arguments in the binary. Both the buffer size as well as the buffer content are controlled from the binary.
objdump -x -C <file>
nm -C <file>
Tested on the following configurations
* 2.6.32-573.7.1.el6.x86_64 #1 SMP Tue Sep 22 22:00:00 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
* 4.1.12-boot2docker #1 SMP Tue Nov 3 06:03:36 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
* Binutils versions: 2.20 and 2.26
Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/42386.zipData
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27 Jul 2017 00:00Current
7.4High risk
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