high
7.5
CWE
476
Advisory Published
Updated

CVE-2020-14397: Null Pointer Dereference

First published: Wed Jun 17 2020(Updated: )

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/libvncserver<0.9.13
0.9.13
debian/libvncserver
0.9.13+dfsg-2+deb11u1
0.9.14+dfsg-1
LibVNCServer<=0.9.12
Ubuntu Linux=14.04
Ubuntu Linux=16.04
Ubuntu Linux=16.04
Ubuntu Linux=18.04
Ubuntu Linux=18.10
Ubuntu Linux=20.04
Debian GNU/Linux=8.0
Debian GNU/Linux=9.0
All of
Siemens Simatic ITC1500>=3.0.0.0<3.2.1.0
Siemens SIMATIC ITC1500 Firmware
All of
Siemens Simatic ITC1500 Pro>=3.0.0.0<3.2.1.0
Siemens Simatic ITC1500 Pro
All of
Siemens Simatic ITC1900 Pro>=3.0.0.0<3.2.1.0
Siemens Simatic ITC1900 Pro
All of
Siemens Simatic ITC1900 Pro>=3.0.0.0<3.2.1.0
Siemens Simatic ITC1900 Pro Firmware
All of
Siemens SIMATIC ITC2200 Firmware>=3.0.0.0<3.2.1.0
Siemens Simatic ITC2200 Pro
All of
Siemens Simatic ITC2200 Pro>=3.0.0.0<3.2.1.0
Siemens SIMATIC ITC2200 Pro Firmware
openSUSE=15.2
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=18.10
Ubuntu=20.04
Debian=8.0
Debian=9.0
Siemens Simatic ITC1500>=3.0.0.0<3.2.1.0
Siemens SIMATIC ITC1500 Firmware
Siemens Simatic ITC1500 Pro>=3.0.0.0<3.2.1.0
Siemens Simatic ITC1500 Pro
Siemens Simatic ITC1900 Pro>=3.0.0.0<3.2.1.0
Siemens Simatic ITC1900 Pro
Siemens Simatic ITC1900 Pro>=3.0.0.0<3.2.1.0
Siemens Simatic ITC1900 Pro Firmware
Siemens SIMATIC ITC2200 Firmware>=3.0.0.0<3.2.1.0
Siemens Simatic ITC2200 Pro
Siemens Simatic ITC2200 Pro>=3.0.0.0<3.2.1.0
Siemens SIMATIC ITC2200 Pro Firmware

Remedy

https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf

Remedy

https://github.com/LibVNC/libvncserver/commit/38e98ee61d74f5f5ab4aa4c77146faad1962d6d0

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID of this issue is CVE-2020-14397.

  • What is the severity of CVE-2020-14397?

    The severity of CVE-2020-14397 is high with a CVSS score of 7.5.

  • What is the affected software of CVE-2020-14397?

    The affected software of CVE-2020-14397 includes libvncserver versions 0.9.11 to 0.9.13.

  • How can I fix CVE-2020-14397?

    To fix CVE0-2020-14397, update libvncserver to version 0.9.14 or apply the appropriate remedy version provided by your Linux distribution.

  • Where can I find more information about CVE-2020-14397?

    You can find more information about CVE-2020-14397 in the provided references: [link1](https://github.com/LibVNC/libvncserver/commit/38e98ee61d74f5f5ab4aa4c77146faad1962d6d0), [link2](https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13), [link3](https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html).

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