cve/2018/CVE-2018-20651.md

CVE-2018-20651

Description

A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a crafted ET_DYN with no program headers. A specially crafted ELF file allows remote attackers to cause a denial of service, as demonstrated by ld.

POC

Reference

• https://sourceware.org/bugzilla/show_bug.cgi?id=24041
• https://sourceware.org/bugzilla/show_bug.cgi?id=24041

Github

• https://github.com/phonito/phonito-vulnerable-container