Vulnerability · Published Jun 17, 2020 · Assigned by mitre
CVE-2020-14397
High 7.5
In plain English
A high-severity security flaw in the libvncserver package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.4% (higher than 89% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)3.4%top 11.1% 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. libvncserver/rfbregion.c has a NULL pointer dereference.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libvncserver | 0.9.11-17.el8 | ALSA-2021:1811 |
| AlmaLinux:8 | libvncserver-devel | 0.9.11-17.el8 | ALSA-2021:1811 |
| Alpine:v3.20 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14397 |
| Alpine:v3.21 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14397 |
| Alpine:v3.22 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14397 |
| Alpine:v3.23 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14397 |
| Alpine:v3.24 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14397 |
| Debian:12 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14397 |
| Debian:13 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14397 |
| Debian:14 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14397 |
| Rocky Linux:8 | libvncserver | 0:0.9.11-17.el8 | RLSA-2021:1811 |
| Ubuntu:22.04:LTS | veyon | no fix listed | UBUNTU-CVE-2020-14397 |
| Ubuntu:24.04:LTS | veyon | no fix listed | UBUNTU-CVE-2020-14397 |
| Ubuntu:25.10 | veyon | no fix listed | UBUNTU-CVE-2020-14397 |
| Ubuntu:26.04:LTS | veyon | no fix listed | UBUNTU-CVE-2020-14397 |
| Ubuntu:26.10 | veyon | no fix listed | UBUNTU-CVE-2020-14397 |
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/38e98ee61d74f5f5ab4aa4c77146faad1962d6d0 x_refsource_MISC
- [debian-lts-announce] 20200630 [SECURITY] [DLA 2264-1] libvncserver security update mailing-list, x_refsource_MLIST
- openSUSE-SU-2020:0988 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:1025 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:1056 vendor-advisory, x_refsource_SUSE
- USN-4434-1 vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20200828 [SECURITY] [DLA 2347-1] libvncserver security update mailing-list, x_refsource_MLIST
- USN-4573-1 vendor-advisory, x_refsource_UBUNTU
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf x_refsource_CONFIRM