CVE-2020-25708
libvncserver - security update
7.5
HIGH
CVSS 3.1
EPSS 0.78%
Description
A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a specially crafted message that, when processed by the VNC server, would lead to a floating point exception, resulting in a denial of service.
How to fix CVE-2020-25708
To remediate CVE-2020-25708, upgrade the affected package to a fixed version below.
- —upgrade to 0.9.13+dfsg-1 or later
- —upgrade to 0.9.11+dfsg-1.3~deb9u6 or later
- —upgrade to 0.9.11+dfsg-1.3+deb10u5 or later
Is CVE-2020-25708 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.9.13+dfsg-1
- from 0, < 0.9.11+dfsg-1.3~deb9u6
- from 0, < 0.9.11+dfsg-1.3+deb10u5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |