CVE-2014-6051

NameCVE-2014-6051
DescriptionInteger overflow in the MallocFrameBuffer function in vncviewer.c in LibVNCServer 0.9.9 and earlier allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via an advertisement for a large screen size, which triggers a heap-based buffer overflow.
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-197-1, DLA-1979-1, DSA-3081-1
NVD severityhigh
Debian Bugs762745

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
italc (PTS)jessie1:2.0.2+dfsg1-2vulnerable
jessie (security)1:2.0.2+dfsg1-2+deb8u1fixed
stretch1:3.0.3+dfsg1-1+deb9u1fixed
libvncserver (PTS)jessie0.9.9+dfsg2-6.1+deb8u3fixed
jessie (security)0.9.9+dfsg2-6.1+deb8u7fixed
stretch0.9.11+dfsg-1.3~deb9u3fixed
stretch (security)0.9.11+dfsg-1.3~deb9u1fixed
buster0.9.11+dfsg-1.3+deb10u3fixed
bullseye, sid0.9.12+dfsg-9fixed
veyon (PTS)buster4.1.7+repack1-1fixed
bullseye, sid4.3.1+repack1-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
italcsource(unstable)1:3.0.1+dfsg1-1
italcsourcejessie1:2.0.2+dfsg1-2+deb8u1DLA-1979-1
libvncserversource(unstable)0.9.9+dfsg-6.1762745
libvncserversourcesqueeze0.9.7-2+deb6u1DLA-197-1
libvncserversourcewheezy0.9.9+dfsg-1+deb7u1DSA-3081-1
veyonsource(unstable)4.1.4+repack1-1

Notes

https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273

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