5.9
MEDIUM
CVE-2019-11366
Atftpd Denial of Service NULL Pointer Dereference
Description

An issue was discovered in atftpd in atftp 0.7.1. It does not lock the thread_list_mutex mutex before assigning the current thread data structure. As a result, the daemon is vulnerable to a denial of service attack due to a NULL pointer dereference. If thread_data is NULL when assigned to current, and modified by another thread before a certain tftpd_list.c check, there is a crash when dereferencing current->next.

INFO

Published Date :

April 20, 2019, 1:29 p.m.

Last Modified :

Sept. 28, 2020, 6:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2019-11366 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 Atftp_project atftp
References to Advisories, Solutions, and Tools

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-2019-11366 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-11366 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]

    Sep. 28, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4540-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 14, 2020

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202003-14 [No Types Assigned]
  • CVE Modified by [email protected]

    May. 12, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/05/msg00012.html [No Types Assigned]
  • CVE Modified by [email protected]

    May. 08, 2019

    Action Type Old Value New Value
    Added Reference https://seclists.org/bugtraq/2019/May/16 [No Types Assigned]
  • CVE Modified by [email protected]

    May. 08, 2019

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2019/dsa-4438 [No Types Assigned]
  • Reanalysis by [email protected]

    Apr. 22, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:atftpd_project:atftpd:0.7.1:*:*:*:*:*:*:* OR *cpe:2.3:a:atftp_project:atftp:0.7.1:*:*:*:*:*:*:*
  • Initial Analysis by [email protected]

    Apr. 22, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://sourceforge.net/p/atftp/code/ci/382f76a90b44f81fec00e2f609a94def4a5d3580/ No Types Assigned https://sourceforge.net/p/atftp/code/ci/382f76a90b44f81fec00e2f609a94def4a5d3580/ Patch, Third Party Advisory
    Changed Reference Type https://pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities No Types Assigned https://pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities Exploit, Third Party Advisory
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:a:atftpd_project:atftpd:0.7.1:*:*:*:*:*:*:*
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-11366 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-11366 weaknesses.

Exploit Prediction

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

2.79 }} 0.05%

score

0.90819

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability