CVE-2020-14403
First published: Wed Jun 17 2020(Updated: )
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/hextile.c allows out-of-bounds access via encodings.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libvnc Project Libvncserver | <=0.9.12 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Canonical Ubuntu Linux | =20.04 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Siemens Simatic Itc1500 Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc1500 | ||
| Siemens Simatic Itc1500 Pro Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc1500 Pro | ||
| Siemens Simatic Itc1900 Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc1900 | ||
| Siemens Simatic Itc1900 Pro Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc1900 Pro | ||
| Siemens Simatic Itc2200 Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc2200 | ||
| Siemens Simatic Itc2200 Pro Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc2200 Pro | ||
| All of | ||
| Siemens Simatic Itc1500 Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc1500 | ||
| All of | ||
| Siemens Simatic Itc1500 Pro Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc1500 Pro | ||
| All of | ||
| Siemens Simatic Itc1900 Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc1900 | ||
| All of | ||
| Siemens Simatic Itc1900 Pro Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc1900 Pro | ||
| All of | ||
| Siemens Simatic Itc2200 Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc2200 | ||
| All of | ||
| Siemens Simatic Itc2200 Pro Firmware | >=3.0.0.0<3.2.1.0 | |
| Siemens Simatic Itc2200 Pro | ||
| debian/libvncserver | 0.9.13+dfsg-2+deb11u1 0.9.14+dfsg-1 |
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Reference Links
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
- https://github.com/LibVNC/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff
- https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13
- https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html
- https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html
- https://usn.ubuntu.com/4434-1/
- https://usn.ubuntu.com/4573-1/
- https://launchpad.net/bugs/cve/CVE-2020-14403
- https://security-tracker.debian.org/tracker/CVE-2020-14403
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14403
- https://nvd.nist.gov/vuln/detail/CVE-2020-14403
- https://ubuntu.com/security/CVE-2020-14403
Frequently Asked Questions
What is CVE-2020-14403?
CVE-2020-14403 is a vulnerability discovered in LibVNCServer before version 0.9.13 that allows out-of-bounds access via encodings.
What is the severity of CVE-2020-14403?
The severity of CVE-2020-14403 is medium, with a CVSS score of 5.4.
How does CVE-2020-14403 affect LibVNCServer?
CVE-2020-14403 affects LibVNCServer before version 0.9.13, allowing out-of-bounds access via encodings.
What software is affected by CVE-2020-14403?
The following software versions are affected: libvncserver 0.9.11+dfsg-1.3+deb10u4, libvncserver 0.9.11+dfsg-1.3+deb10u5, libvncserver 0.9.13+dfsg-2+deb11u1, libvncserver 0.9.14+dfsg-1, libvncserver 0.9.12+dfsg-9ubuntu0.2, vino 3.22.0-6ubuntu2, vino 3.22.0-3ubuntu1.1, vino 3.22.0-5ubuntu2.1, vino 3.8.1-0ubuntu9.3.
How do I fix CVE-2020-14403?
To fix CVE-2020-14403, you should update your LibVNCServer installation to version 0.9.13 or later.
- collector/nvd-index
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/remedy
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- collector/security-tracker-debian
- source/Debian
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/softwarecombine
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- agent/trending
- vendor/libvnc project
- canonical/libvnc project libvncserver
- version/libvnc project libvncserver/0.9.12
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/18.10
- version/canonical ubuntu linux/20.04
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- vendor/siemens
- canonical/siemens simatic itc1500 firmware
- version/siemens simatic itc1500 firmware/3.0.0.0
- canonical/siemens simatic itc1500
- canonical/siemens simatic itc1500 pro firmware
- version/siemens simatic itc1500 pro firmware/3.0.0.0
- canonical/siemens simatic itc1500 pro
- canonical/siemens simatic itc1900 firmware
- version/siemens simatic itc1900 firmware/3.0.0.0
- canonical/siemens simatic itc1900
- canonical/siemens simatic itc1900 pro firmware
- version/siemens simatic itc1900 pro firmware/3.0.0.0
- canonical/siemens simatic itc1900 pro
- canonical/siemens simatic itc2200 firmware
- version/siemens simatic itc2200 firmware/3.0.0.0
- canonical/siemens simatic itc2200
- canonical/siemens simatic itc2200 pro firmware
- version/siemens simatic itc2200 pro firmware/3.0.0.0
- canonical/siemens simatic itc2200 pro
- package-manager/debian