CVE-2020-25708 — HIGH (7.5)

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Libvncserver Project	Libvncserver	0.9.12
Redhat	Enterprise Linux	6.0
Debian	Debian Linux	10.0

Related Weaknesses (CWE)

CWE-369

References

https://bugzilla.redhat.com/show_bug.cgi?id=1896739ExploitIssue TrackingPatch
https://lists.debian.org/debian-lts-announce/2022/09/msg00035.htmlMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1896739ExploitIssue TrackingPatch
https://lists.debian.org/debian-lts-announce/2022/09/msg00035.htmlMailing ListThird Party Advisory

FAQ

What is CVE-2020-25708?

CVE-2020-25708 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 flo...

How severe is CVE-2020-25708?

CVE-2020-25708 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-25708?

Check the references section above for vendor advisories and patch information. Affected products include: Libvncserver Project Libvncserver, Redhat Enterprise Linux, Debian Debian Linux.