CVE-2018-20450

NameCVE-2018-20450
DescriptionThe read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.
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 Bugs919324

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
r-cran-readxl (PTS)stretch0.1.1-1+deb9u2fixed
stretch (security)0.1.1-1+deb9u1vulnerable
buster1.3.0-1fixed
sid1.3.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
r-cran-readxlsource(unstable)1.2.0.9000-1medium919324
r-cran-readxlsourcestretch0.1.1-1+deb9u2medium

Notes

https://github.com/evanmiller/libxls/issues/34

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