CVE-2018-18309

Name	CVE-2018-18309
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
binutils (PTS)	jessie, jessie (lts)	2.25-5+deb8u2	vulnerable
	stretch (lts), stretch	2.28-5+deb9u1	vulnerable
	buster, buster (lts)	2.31.1-16+deb10u1	vulnerable
	bullseye	2.35.2-2	fixed
	bookworm	2.40-2	fixed
	trixie	2.43.50.20241215-1	fixed
	sid	2.43.50.20241221-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
binutils	source	experimental	2.31.51.20181022-1
binutils	source	(unstable)	2.32.51.20190707-1	unimportant

Notes

https://sourceware.org/bugzilla/show_bug.cgi?id=23770
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0930cb3021b8078b34cf216e79eb8608d017864f
binutils not covered by security support