CVE-2018-18521

NameCVE-2018-18521
DescriptionDivide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled.
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)
ReferencesDLA-1689-1
NVD severitymedium
Debian Bugs911413

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
elfutils (PTS)jessie0.159-4.2vulnerable
jessie (security)0.159-4.2+deb8u1fixed
stretch0.168-1vulnerable
buster, bullseye, sid0.176-1.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
elfutilssource(unstable)0.175-1low911413
elfutilssourcejessie0.159-4.2+deb8u1DLA-1689-1

Notes

[stretch] - elfutils <no-dsa> (Minor issue)
https://sourceware.org/bugzilla/show_bug.cgi?id=23786
https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.html
https://sourceware.org/git/?p=elfutils.git;a=commit;h=2b16a9be69939822dcafe075413468daac98b327

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