CVE-2020-11047: canonical ubuntu_linux Out-of-bounds Read
Vulnerability summary
CVE-2020-11047 is a medium (CVSS 5.9) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 1.71% chance of exploitation in the next 30 days, higher than 77% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 5 · Related 1Timeline
- 07-05-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In FreeRDP after 1.1 and before 2.0.0, there is an out-of-bounds read in autodetect_recv_bandwidth_measure_results. A malicious server can extract up to 8 bytes of client memory with a manipulated message by providing a short input and reading the measurement result data. This has been patched in 2.0.0.
CVSS metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA5.5MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:LDiffers
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
1.71%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.71% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundFreerdp
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- freerdp2< 2.1.1+dfsg1-1
- debian_linuxEOL10.0
Canonical1 product
- ubuntu_linuxEOL18.04 | 19.10 | 20.04
Freerdp1 product
- freerdp> 1.1, < 2.0.0 | > 1.1.0, < 2.0.0
Ubuntu1 product
- freerdp2< 2.1.1+dfsg1-0ubuntu0.18.04.1 | < 2.1.1+dfsg1-0ubuntu0.20.04.1
4 vendors · 5 products
