CVE-2018-18605

Published: 23 October 2018

A heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup in merge.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31, because _bfd_add_merge_section mishandles section merges when size is not a multiple of entsize. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

Priority

Low

CVSS 3 base score: 5.5

Status

Package Release Status
binutils
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(2.32-8ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(2.32-8ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2.30-21ubuntu1~18.04.3)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (2.26.1-1ubuntu1~16.04.8+esm1)
Ubuntu 14.04 ESM (Trusty Tahr) Needs triage

Patches:
Upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ab419ddbb2cdd17ca83618990f2cacf904ce1d61