Off-by-one Vulnerability in BFD Library Leads to GNU Linker Crash

CVE-2017-7301 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

The Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, has an aout_link_add_symbols function in bfd/aoutx.h that has an off-by-one vulnerability because it does not carefully check the string offset. The vulnerability could lead to a GNU linker (ld) program crash.

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