CVE-2018-18606

NameCVE-2018-18606
DescriptionAn issue was discovered in the merge_strings function in merge.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in _bfd_add_merge_section when attempting to merge sections with large alignments. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.
SourceCVE (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 PackageReleaseVersionStatus
binutils (PTS)bullseye2.35.2-2fixed
bookworm2.40-2fixed
sid, trixie2.43.1-5fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
binutilssourceexperimental2.31.51.20181204-1
binutilssource(unstable)2.32.51.20190707-1unimportant

Notes

https://sourceware.org/bugzilla/show_bug.cgi?id=23806
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=45a0eaf77022963d639d6d19871dbab7b79703fc
binutils not covered by security support

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