// For flags

CVE-2020-6097

Ubuntu Security Notice USN-6334-1

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Se presenta una vulnerabilidad de denegación de servicio explotable en la funcionalidad del demonio de atftpd de atftp versión 0.7.git20120829-3.1+b1. Una secuencia especialmente diseñada de peticiones RRQ-Multicast desencadena una llamada a la función assert() que resulta en una denegación de servicio. Un atacante puede enviar una secuencia de paquetes maliciosos para desencadenar esta vulnerabilidad

Peter Wang discovered that atftp did not properly manage certain inputs. A remote attacker could send a specially crafted tftp request to the server to cause a crash. Andreas B. Mundt discovered that atftp did not properly manage certain inputs. A remote attacker could send a specially crafted tftp request to the server to cause a crash. Johannes Krupp discovered that atftp did not properly manage certain inputs. A remote attacker could send a specially crafted tftp request to the server and make the server to disclose /etc/group data.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-01-07 CVE Reserved
  • 2020-09-10 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-617: Reachable Assertion
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Atftp Project
Search vendor "Atftp Project"
Atftp
Search vendor "Atftp Project" for product "Atftp"
0.7.git20120829-3.1\+b1
Search vendor "Atftp Project" for product "Atftp" and version "0.7.git20120829-3.1\+b1"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Opensuse
Search vendor "Opensuse"
Leap
Search vendor "Opensuse" for product "Leap"
15.2
Search vendor "Opensuse" for product "Leap" and version "15.2"
-
Affected