Package        : libvncserver
Version        : 0.9.9+dfsg2-6.1+deb8u8
CVE ID         : CVE-2019-20839 CVE-2020-14397 CVE-2020-14399 CVE-2020-14400 
                 CVE-2020-14401 CVE-2020-14402 CVE-2020-14403 CVE-2020-14404 
                 CVE-2020-14405
Debian Bug     : 


Several vulnerabilities have been discovered in libVNC (libvncserver Debian package), an
implemenantation of the VNC server and client protocol.

CVE-2019-20839

    libvncclient/sockets.c in LibVNCServer had a buffer overflow via a
    long socket filename.

CVE-2020-14397

    libvncserver/rfbregion.c had a NULL pointer dereference.

CVE-2020-14399

    Byte-aligned data was accessed through uint32_t pointers in
    libvncclient/rfbproto.c.

CVE-2020-14400

    Byte-aligned data was accessed through uint16_t pointers in
    libvncserver/translate.c.

CVE-2020-14401

    libvncserver/scale.c had a pixel_value integer overflow.

CVE-2020-14402

    libvncserver/corre.c allowed out-of-bounds access via encodings.

CVE-2020-14403

    libvncserver/hextile.c allowed out-of-bounds access via encodings.

CVE-2020-14404

    libvncserver/rre.c allowed out-of-bounds access via encodings.

CVE-2020-14405

    libvncclient/rfbproto.c does not limit TextChat size.

For Debian 8 "Jessie", these problems have been fixed in version
0.9.9+dfsg2-6.1+deb8u8.

We recommend that you upgrade your libvncserver packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

-- 

mike gabriel aka sunweaver (Debian Developer)
fon: +49 (1520) 1976 148

GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22  0782 9AF4 6B30 2577 1B31
mail: sunweaver@debian.org, https://sunweavers.net/