CVE-2018-18309: GNU Binutils

Medium severity, CVSS 5.5. EPSS: 1.8% chance of exploitation in the next 30 days.

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. The vulnerability causes a segmentation fault and application crash, which leads to denial of service, as demonstrated by objdump, because of missing _bfd_clear_contents bounds checking.

Affected products

• GNU Binutils: version 2.31 only

Published 2018-10-15. Last modified 2026-06-17.