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Fencer Vulns
medium 6.5

CVE-2017-2836 json

An exploitable denial of service vulnerability exists within the reading of proprietary server certificates in FreeRDP 2.0.0-beta1+android1…

published 2018-04-24 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-11977

cvss
6.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

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.

Patch / fix

  • freerdp Ubuntu 14.04 LTS 1.0.2-2ubuntu1.1
  • freerdp Ubuntu 16.04 LTS 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2

ubuntu advisories UBUNTU-CVE-2017-2836

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • freerdp SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 2.1.2-12.20.1
  • vinagre SLE Workstation Extension 12 SP5 3.20.2-16.3.3
  • freerdp SLED 12 SP3, SLED 12 SP2, SLE Workstation Extension 12 SP3 +3 more 2.0.0~git.1463131968.4e66df7-12.3.2

suse advisories SUSE-SU-2020:2272-1SUSE-SU-2017:2234-1

  • freerdp2 openSUSE Tumbleweed 2.4.0-2.1

opensuse advisories openSUSE-SU-2024:10768-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-2836 updated cvss 5.3

freerdp: Rdp Client Read Server Proprietary Certificate Denial of Service

  • Red Hat Enterprise Linux 6 freerdp, freerdp-libs, freerdp-plugins Red Hat Enterprise Linux 7 freerdp, libwinpr, freerdp-libs, freerdp-plugins
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

  • FreeRDP FreeRDP

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.