CVE-2017-15939

dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, mishandles NULL files in a .debug_line file table, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted ELF file, related to concat_filename. NOTE: this issue is caused by an incomplete fix for CVE-2017-15023.

• CWE-476

• http://www.securityfocus.com/bid/101613
• https://blogs.gentoo.org/ago/2017/10/24/binutils-null-pointer-dereference-in-concat_filename-dwarf2-c-incomplete-fix-for-cve-2017-15023/Issue Tracking, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/201801-01
• https://sourceware.org/bugzilla/show_bug.cgi?id=22205Issue Tracking, Patch, Third Party Advisory
• https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=a54018b72d75abf2e74bf36016702da06399c1d9
• http://www.securityfocus.com/bid/101613
• https://blogs.gentoo.org/ago/2017/10/24/binutils-null-pointer-dereference-in-concat_filename-dwarf2-c-incomplete-fix-for-cve-2017-15023/Issue Tracking, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/201801-01
• https://sourceware.org/bugzilla/show_bug.cgi?id=22205Issue Tracking, Patch, Third Party Advisory
• https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=a54018b72d75abf2e74bf36016702da06399c1d9

Published

Oct 27, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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