8.4
HIGH
CVE-2017-16927
xrdp Buffer Overflow Denial of Service
Description

The scp_v0s_accept function in sesman/libscp/libscp_v0.c in the session manager in xrdp through 0.9.4 uses an untrusted integer as a write length, which allows local users to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted input stream.

INFO

Published Date :

Nov. 23, 2017, 6:29 a.m.

Last Modified :

Nov. 7, 2023, 2:40 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.5
Affected Products

The following products are affected by CVE-2017-16927 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Neutrinolabs xrdp
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-16927.

URL Resource
https://github.com/neutrinolabs/xrdp/pull/958 Issue Tracking Patch
https://groups.google.com/forum/#%21topic/xrdp-devel/PmVfMuy_xBA
https://lists.debian.org/debian-lts-announce/2017/12/msg00005.html

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-16927 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-16927 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://groups.google.com/forum/#%21topic/xrdp-devel/PmVfMuy_xBA [No types assigned]
    Removed Reference MITRE https://groups.google.com/forum/#!topic/xrdp-devel/PmVfMuy_xBA
  • CPE Deprecation Remap by [email protected]

    Jul. 08, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:xrdp:xrdp:*:*:*:*:*:*:*:* versions from (including) 0.9.4 OR *cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:* versions from (including) 0.9.4
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-20 CWE-119
  • CVE Modified by [email protected]

    Aug. 13, 2018

    Action Type Old Value New Value
    Removed Reference https://groups.google.com/forum/#%21topic/xrdp-devel/PmVfMuy_xBA [Issue Tracking, Third Party Advisory]
    Added Reference https://groups.google.com/forum/#!topic/xrdp-devel/PmVfMuy_xBA [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 04, 2018

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2017/12/msg00005.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 12, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://groups.google.com/forum/#%21topic/xrdp-devel/PmVfMuy_xBA No Types Assigned https://groups.google.com/forum/#%21topic/xrdp-devel/PmVfMuy_xBA Issue Tracking, Third Party Advisory
    Changed Reference Type https://github.com/neutrinolabs/xrdp/pull/958 No Types Assigned https://github.com/neutrinolabs/xrdp/pull/958 Issue Tracking, Patch
    Added CWE CWE-20
    Added CPE Configuration OR *cpe:2.3:a:xrdp:xrdp:*:*:*:*:*:*:*:* versions up to (including) 0.9.4
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.08 }} 0.00%

score

0.33280

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
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Scope
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