CVE-2017-6420

NameCVE-2017-6420
DescriptionThe wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.
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-1105-1, DLA-1261-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
clamav (PTS)jessie0.100.0+dfsg-0+deb8u1fixed
jessie (security)0.101.5+dfsg-0+deb8u2fixed
stretch0.102.1+dfsg-0+deb9u2fixed
buster0.102.2+dfsg-0+deb10u1fixed
bullseye, sid0.102.3+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
clamavsource(unstable)0.99.3~beta1+dfsg-1
clamavsourcejessie0.99.2+dfsg-0+deb8u3
clamavsourcestretch0.99.2+dfsg-6+deb9u1
clamavsourcewheezy0.99.2+dfsg-0+deb7u4DLA-1261-1

Notes

https://bugzilla.clamav.net/show_bug.cgi?id=11798
https://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc
https://github.com/vrtadmin/clamav-devel/commit/60671e3deb1df6c626e5c7e13752c2eec1649f98

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