CVE-2018-20651

5.5 mediumEPSS 2.2%

Medium (5.5) in gnu binutils. EPSS 2.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.0

5.5 medium

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2019-01-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gnu:binutils

References

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/106440
https://security.gentoo.org/glsa/201908-01
https://sourceware.org/bugzilla/show_bug.cgi?id=24041

Check your stack JSON