| Name | CVE-2014-6052 |
| Description | The 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-197-1, DLA-1979-1, DSA-3081-1 |
| Debian Bugs | 762745 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libvncserver (PTS) | buster | 0.9.11+dfsg-1.3+deb10u4 | fixed |
| buster (security) | 0.9.11+dfsg-1.3+deb10u5 | fixed | |
| bullseye | 0.9.13+dfsg-2+deb11u1 | fixed | |
| bookworm, sid | 0.9.14+dfsg-1 | fixed | |
| veyon (PTS) | buster | 4.1.7+repack1-1 | fixed |
| bullseye | 4.5.3+repack1-1 | fixed | |
| bookworm, sid | 4.7.5+repack1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| italc | source | jessie | 1:2.0.2+dfsg1-2+deb8u1 | DLA-1979-1 | ||
| italc | source | (unstable) | 1:3.0.1+dfsg1-1 | |||
| libvncserver | source | squeeze | 0.9.7-2+deb6u1 | DLA-197-1 | ||
| libvncserver | source | wheezy | 0.9.9+dfsg-1+deb7u1 | DSA-3081-1 | ||
| libvncserver | source | (unstable) | 0.9.9+dfsg-6.1 | 762745 | ||
| veyon | source | (unstable) | 4.1.4+repack1-1 |
https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812