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CVE-2020-6097

Published: 10 September 2020

An exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp 0.7.git20120829-3.1+b1. A specially crafted sequence of RRQ-Multicast requests trigger an assert() call resulting in denial-of-service. An attacker can send a sequence of malicious packets to trigger this vulnerability.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
atftp
Launchpad, Ubuntu, Debian
bionic
Released (0.7.git20120829-3.1~0.18.04.1+esm1)
Available with Ubuntu Pro
focal
Released (0.7.git20120829-3.1ubuntu0.1)
upstream Not vulnerable

trusty Does not exist

xenial
Released (0.7.git20120829-3.1~0.16.04.1+esm1)
Available with Ubuntu Pro
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
jammy Not vulnerable
(0.7.git20210915-4)
impish Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
lunar Not vulnerable
(0.8.0-3)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H