CVE-2020-11045
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Description
The CVE Program describes this issue as:
In FreeRDP after 1.0 and before 2.0.0, there is an out-of-bound read in in update_read_bitmap_data that allows client memory to be read to an image buffer. The result displayed on screen as colour.
Additional information
- Bugzilla 1835399: freerdp: out of bounds read in update_read_bitmap_data function
- CWE-125: Out-of-bounds Read
- FAQ: Frequently asked questions about CVE-2020-11045
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).
| Red Hat | NVD | |
|---|---|---|
CVSS v3 Base Score | 3.3 | 3.3 |
Attack Vector | Network | Network |
Attack Complexity | High | High |
Privileges Required | High | High |
User Interaction | None | None |
Scope | Unchanged | Unchanged |
Confidentiality Impact | Low | Low |
Integrity Impact | None | None |
Availability Impact | Low | Low |
CVSS v3 Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L
NVD: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L
Red Hat CVSS v3 Score Explanation
AC:H because attacker would need control over data sent from RDP server to client, and send specially crafted bitmap. PR:H because the attack needs to be done from an established RDP connected server. A:L because out-of-bounds reads are undefined behavior and always a risk of a crash/Denial-of-Service.
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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