CVE-2018-20349

NameCVE-2018-20349
DescriptionThe igraph_i_strdiff function in igraph_trie.c in igraph through 0.7.1 has an NULL pointer dereference that allows attackers to cause a denial of service (application crash) via a crafted object.
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)
Debian Bugs917211, 917212

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
igraph (PTS)jessie0.7.1-2vulnerable
stretch0.7.1-2.1+deb9u1fixed
bullseye, sid, buster0.7.1-4fixed
r-cran-igraph (PTS)stretch1.0.1-1+deb9u1fixed
buster1.2.3-1fixed
bullseye, sid1.2.4.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
igraphsource(unstable)0.7.1-3medium917211
igraphsourcestretch0.7.1-2.1+deb9u1medium
r-cran-igraphsource(unstable)1.2.2-2medium917212
r-cran-igraphsourcestretch1.0.1-1+deb9u1medium

Notes

[jessie] - igraph <no-dsa> (Minor issue)
https://github.com/igraph/igraph/issues/1141
Fixed by: https://github.com/igraph/igraph/commit/e3a9566e6463186230f215151b57b893df6d9ce2

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