CVE-2017-2836: debian debian_linux Improper Certificate Validation
Vulnerability summary
CVE-2017-2836 is a medium (CVSS 6.5) Improper Certificate Validation vulnerability in debian debian_linux. EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 57.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 8 · Related 4Timeline
- 24-04-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
An exploitable denial of service vulnerability exists within the reading of proprietary server certificates in FreeRDP 2.0.0-beta1+android11. A specially crafted challenge packet can cause the program termination leading to a denial of service condition. An attacker can compromise the server or use man in the middle to trigger this vulnerability.
CVSS metrics
6 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.86%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
-0.02 pp
From 0.88% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- debian_linuxEOL8.0 | 9.0
Freerdp1 product
- freerdp2.0.0-beta1+android11 - Windows, OSX, Linux | 2.0.0:beta1
Ubuntu1 product
- freerdp< 1.0.2-2ubuntu1.1 | < 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2
3 vendors · 3 products
References
7 links
- www.talosintelligence.com/vulnerability_reports/TALOS-2017-0338X Refsource MISCThird Party AdvisoryREPORT