Vulnerability · Published Jun 17, 2020 · Assigned by mitre
CVE-2020-14396
High 7.5
In plain English
A high-severity security flaw in the libvncserver package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.6%top 14.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in LibVNCServer before 0.9.13. libvncclient/tls_openssl.c has a NULL pointer dereference.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14396 |
| Debian:13 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14396 |
| Debian:14 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14396 |
| Ubuntu:22.04:LTS | veyon | no fix listed | UBUNTU-CVE-2020-14396 |
| Ubuntu:24.04:LTS | veyon | no fix listed | UBUNTU-CVE-2020-14396 |
| Ubuntu:25.10 | veyon | no fix listed | UBUNTU-CVE-2020-14396 |
| Ubuntu:26.04:LTS | veyon | no fix listed | UBUNTU-CVE-2020-14396 |
| Ubuntu:26.10 | veyon | no fix listed | UBUNTU-CVE-2020-14396 |
Affected products (as reported)
References
- https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13 x_refsource_MISC
- https://github.com/LibVNC/libvncserver/commit/33441d90a506d5f3ae9388f2752901227e430553 x_refsource_MISC
- USN-4434-1 vendor-advisory, x_refsource_UBUNTU
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf x_refsource_CONFIRM