CVE Vulnerability

CVE-2019-11366

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://sourceforge.net/p/atftp/code/ci/382f76a90b44f81fec00e2f609a94def4a5d3580/ Patch Third Party Advisory
https://pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities Exploit Third Party Advisory
https://www.debian.org/security/2019/dsa-4438
https://seclists.org/bugtraq/2019/May/16
https://lists.debian.org/debian-lts-announce/2019/05/msg00012.html
https://security.gentoo.org/glsa/202003-14
https://usn.ubuntu.com/4540-1/
Configurations

Configuration 1

cpe:2.3:a:atftp_project:atftp:0.7.1:*:*:*:*:*:*:*
Information

Published : 2019-04-20 01:29

Updated : 2020-09-28 06:15

NVD link : CVE-2019-11366

Mitre link : CVE-2019-11366

Products Affected
No products.
CWE
CWE-476