Debian alert DLA-3125-1 (libvncserver)

From:
             
 
Thorsten Alteholz <debian@alteholz.de>
To:
             
 
debian-lts-announce@lists.debian.org
Subject:
             
 
[SECURITY] [DLA 3125-1] libvncserver security update
Date:
             
 
Thu, 29 Sep 2022 22:14:33 +0000
Message-ID:
             
 
<alpine.DEB.2.21.2209292211470.18036@postfach.intern.alteholz.me>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian LTS Advisory DLA-3125-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                    Thorsten Alteholz
September 30, 2022                            https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : libvncserver
Version        : 0.9.11+dfsg-1.3+deb10u5
CVE ID         : CVE-2020-25708 CVE-2020-29260


Two issues have been found in libvncserver, a library to write one's own 
VNC server.

CVE-2020-25708

     Due to some missing checks, a divide by zero could happen, which could
     result in a denial of service.

CVE-2020-29260

     Due to a memory leak in function rfbClientCleanup() a remote attacker
     might be able to cause a denial of service.



For Debian 10 buster, these problems have been fixed in version
0.9.11+dfsg-1.3+deb10u5.

We recommend that you upgrade your libvncserver packages.

For the detailed security status of libvncserver please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libvncserver

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

-----BEGIN PGP SIGNATURE-----
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=8V2/
-----END PGP SIGNATURE-----