NULL Pointer Dereference in merge_strings function in libbfd

CVE-2018-18606 · MEDIUM Severity

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

An issue was discovered in the merge_strings function in merge.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in _bfd_add_merge_section when attempting to merge sections with large alignments. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

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