NULL Pointer Dereference in elf_link_input_bfd in GNU Binutils 2.31

CVE-2018-18607 · MEDIUM Severity

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

An issue was discovered in elf_link_input_bfd in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

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