CVE-2020-14399
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Description
The CVE Program describes this issue as:
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.
Statement
This flaw does not affect versions of vino shipped with Red Hat Enterprise Linux 6, 7, or 8 because vino does not ship the libvncclient. Additionally, Red Hat Product Security does not consider this to be a security vulnerability because no trust boundary is crossed and there is no known path of exploitation. This is a standard software reliability bug.
Additional information
- Bugzilla 1860354: libvncserver: byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- FAQ: Frequently asked questions about CVE-2020-14399
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
| Red Hat | NVD | |
|---|---|---|
CVSS v3 Base Score | 0 | 7.5 |
Attack Vector | Network | Network |
Attack Complexity | High | Low |
Privileges Required | None | None |
User Interaction | None | None |
Scope | Unchanged | Unchanged |
Confidentiality Impact | None | None |
Integrity Impact | None | None |
Availability Impact | None | High |
CVSS v3 Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:N
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Red Hat CVSS v3 Score Explanation
This is not a security issue.
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
What can I do if my product is listed as "Will not fix"?
What can I do if my product is listed as "Fix deferred"?
What is a mitigation?
I have a Red Hat product but it is not in the above list, is it affected?
Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?
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