Medium severity · published Jun 17, 2020
CVE-2020-14403
An issue was discovered in LibVNCServer before 0.9.13
5.4
CVSS
1.6%
EPSS
No
On KEV
Description
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/hextile.c allows out-of-bounds access via encodings.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
LI
Libvncserver · Libvnc Project
through 0.9.12 · source: NVD
SI
Simatic Itc1500 Firmware · Siemens
3.0.0.0 before 3.2.1.0 · source: NVD
SI
Simatic Itc1500 Pro Firmware · Siemens
3.0.0.0 before 3.2.1.0 · source: NVD
SI
Simatic Itc1900 Firmware · Siemens
3.0.0.0 before 3.2.1.0 · source: NVD
SI
Simatic Itc1900 Pro Firmware · Siemens
3.0.0.0 before 3.2.1.0 · source: NVD
SI
Simatic Itc2200 Firmware · Siemens
3.0.0.0 before 3.2.1.0 · source: NVD
SI
Simatic Itc2200 Pro Firmware · Siemens
3.0.0.0 before 3.2.1.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 16.04; 18.04; 18.10; 20.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14403
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14403
Patch
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
Patch
https://github.com/LibVNC/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff
Release Notes
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html
Mailing List
https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html
Third Party Advisory
https://usn.ubuntu.com/4434-1/
More from Ubuntu Linux
9.8
CVE-2020-11651
SaltStack Salt Authentication Bypass Vulnerability
9.8
CVE-2020-7247
OpenSMTPD Remote Code Execution Vulnerability
9.8
CVE-2019-11043
Underflow in PHP-FPM can lead to RCE
9.8
CVE-2019-16928
Exim Out-of-bounds Write Vulnerability
9.8
CVE-2019-10149
Exim Mail Transfer Agent (MTA) Improper Input Validation