CVE-2014-6052

NameCVE-2014-6052
DescriptionThe HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message.
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)stretch1:3.0.3+dfsg1-1+deb9u1fixed
libvncserver (PTS)stretch0.9.11+dfsg-1.3~deb9u4fixed
stretch (security)0.9.11+dfsg-1.3~deb9u6fixed
buster0.9.11+dfsg-1.3+deb10u4fixed
bullseye0.9.13+dfsg-2fixed
bookworm, sid0.9.13+dfsg-3fixed
veyon (PTS)buster4.1.7+repack1-1fixed
bookworm, sid, bullseye4.5.3+repack1-1fixed

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

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

Notes

https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812

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