CVE-2014-6051

Integer 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...

CVE-2014-6051

CVE-2014-6051 is an integer overflow in LibVNCServer’s MallocFrameBuffer() (vncviewer.c) that can lead to a heap-based buffer overflow, enabling DoS or potential remote code execution via advertisement of oversized screen sizes. Debian and Gentoo advisories document multiple vulnerable components...

Ubuntu 14.04 LTS : LibVNCServer vulnerabilities (USN-2365-1)

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2365-1 advisory. Nicolas Ruff discovered that LibVNCServer incorrectly handled memory when being advertised large screen sizes by the server. If a user were tricked into...

USN-2365-1: LibVNCServer vulnerabilities

Nicolas Ruff discovered that LibVNCServer incorrectly handled memory when being advertised large screen sizes by the server. If a user were tricked into connecting to a malicious server, an attacker could use this issue to cause a denial of service, or possibly execute arbitrary code...

[SECURITY] Fedora 20 Update: libvncserver-0.9.10-0.6.20140718git9453be42.fc20

LibVNCServer makes writing a VNC server or more correctly, a program exporting a framebuffer via the Remote Frame Buffer protocol easy. It hides the programmer from the tedious task of managing clients and compression schemata...

libvncserver multiple security vulnerabilities

Buffer overflows, memory corruptions, DoS...

Fedora 20 : libvncserver-0.9.10-0.6.20140718git9453be42.fc20 (2014-11537)

Various security fixes, including CVE-2014-6051, CVE-2014-6052, CVE-2014-6053, CVE-2014-6054, CVE-2014-6055 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as mu...

[oCERT-2014-007] libvncserver multiple issues

2014-007 libvncserver multiple issues Description: Virtual Network Computing VNC is a graphical sharing system based on the Remote Frame Buffer RFB protocol. The LibVNCServer project, an open source library for implementing VNC compliant communication, suffers from a number of bugs that can be...

FreeBSD : krfb -- Multiple security issues in bundled libvncserver (fb25333d-442f-11e4-98f3-5453ed2e2b49)

Martin Sandsmark reports : krfb 4.14 and earlier embeds libvncserver which has had several security issues. Several remotely exploitable security issues have been uncovered in libvncserver, some of which might allow a remote authenticated user code execution or application crashes. %NASLMINLEVEL...

CVE-2014-6051

Integer 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...

UBUNTU-CVE-2014-6055

Multiple 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...

UBUNTU-CVE-2014-6054

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier allows remote attackers to cause a denial of service divide-by-zero error and server crash via a zero value in the scaling factor in a 1 PalmVNCSetScaleFactor or 2 SetScale message...

CVE-2014-6055

Multiple 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...

UBUNTU-CVE-2014-6052

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...

CVE-2014-6054

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier allows remote attackers to cause a denial of service divide-by-zero error and server crash via a zero value in the scaling factor in a 1 PalmVNCSetScaleFactor or 2 SetScale message...

CVE-2014-6052

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...

UBUNTU-CVE-2014-6053

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service memory consumption or daemon crash via a crafted...

libvncserver -- multiple security vulnerabilities

Nicolas Ruff reports: Integer overflow in MallocFrameBuffer on client side. Lack of malloc return value checking on client side. Server crash on a very large ClientCutText message. Server crash when scaling factor is set to zero. Multiple stack overflows in File Transfer feature...

krfb -- Multiple security issues in bundled libvncserver

Martin Sandsmark reports: krfb 4.14 and earlier embeds libvncserver which has had several security issues. Several remotely exploitable security issues have been uncovered in libvncserver, some of which might allow a remote authenticated user code execution or application crashes...

Mandriva Linux Security Advisory : libvncserver (MDVSA-2014:168)

An integer overflow in liblzo before 2.07 allows attackers to cause a denial of service or possibly code execution in applications using performing LZO decompression on a compressed payload from the attacker CVE-2014-4607. The libvncserver library is built with a bundled copy of minilzo, which is...