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, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
binutils (PTS)jessie2.25-5+deb8u1vulnerable
stretch2.28-5vulnerable
buster, sid2.31.1-11vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
binutilssource(unstable)(unfixed)medium

Notes

[stretch] - binutils <ignored> (Minor issue)
[jessie] - binutils <ignored> (Minor issue)
https://sourceware.org/bugzilla/show_bug.cgi?id=23806
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=45a0eaf77022963d639d6d19871dbab7b79703fc

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