CVE-2014-6055

NameCVE-2014-6055
DescriptionMultiple stack-based buffer overflows in the File Transfer feature in rfbserver.c in LibVNCServer 0.9.9 and earlier allow remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via a (1) long file or (2) directory name or the (3) FileTime attribute in a rfbFileTransferOffer message.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-197-1, DSA-3081-1
NVD severitymedium (attack range: remote)
Debian Bugs762745

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libvncserver (PTS)wheezy0.9.9+dfsg-1+deb7u1fixed
wheezy (security)0.9.9+dfsg-1+deb7u2fixed
jessie (security), jessie0.9.9+dfsg2-6.1+deb8u2fixed
buster, sid, stretch0.9.11+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libvncserversource(unstable)0.9.9+dfsg-6.1medium762745
libvncserversourcesqueeze0.9.7-2+deb6u1mediumDLA-197-1
libvncserversourcewheezy0.9.9+dfsg-1+deb7u1mediumDSA-3081-1

Notes

https://github.com/newsoft/libvncserver/commit/06ccdf016154fde8eccb5355613ba04c59127b2e
https://github.com/newsoft/libvncserver/commit/f528072216dec01cee7ca35d94e171a3b909e677
https://github.com/newsoft/libvncserver/commit/256964b884c980038cd8b2f0d180fbb295b1c748 (improvement)
check for possible ABI break: https://bugzilla.redhat.com/show_bug.cgi?id=1144293#c2

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