CVE-2018-20651

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.

• CWE-476

• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
• http://www.securityfocus.com/bid/106440Third Party Advisory, VDB Entry
• https://security.gentoo.org/glsa/201908-01
• https://sourceware.org/bugzilla/show_bug.cgi?id=24041Exploit, Issue Tracking, Third Party Advisory
• https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f
• https://support.f5.com/csp/article/K38336243Third Party Advisory
• https://usn.ubuntu.com/4336-1/
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
• http://www.securityfocus.com/bid/106440Third Party Advisory, VDB Entry
• https://security.gentoo.org/glsa/201908-01
• https://sourceware.org/bugzilla/show_bug.cgi?id=24041Exploit, Issue Tracking, Third Party Advisory
• https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f
• https://support.f5.com/csp/article/K38336243Third Party Advisory
• https://usn.ubuntu.com/4336-1/

Published

Jan 1, 2019

Last Modified

Jun 17, 2026

Status

Modified

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