CVE-2020-14399

Description

An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 2.13% Top 20%

Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com

Affected: n/a n/a

References

Link	Tags
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13	release notes
https://github.com/LibVNC/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a618174d3c2d	patch
https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html	third party advisory mailing list
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html	mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html	mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html	mailing list third party advisory vendor advisory
https://usn.ubuntu.com/4434-1/	third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1860354	issue tracking third party advisory patch
https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html	third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-14399?: CVE-2020-14399 has been scored as a high severity vulnerability.
How to fix CVE-2020-14399?: To fix CVE-2020-14399, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-14399 being actively exploited in the wild?: It is possible that CVE-2020-14399 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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