PT-2020-3967 · Atftp+4 · Atftp+4

Peter Wang · Published 2020-09-10 · Updated 2024-06-15 · CVE-2020-6097

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions: atftp version 0.7.git20120829-3.1+b1

Description: The issue is related to a denial of service vulnerability in the atftpd daemon functionality. It can be exploited by a remote attacker using a specially crafted sequence of RRQ-Multicast requests, triggering an assert() call that results in a denial of service. An attacker can send malicious packets to trigger this issue.

Recommendations: For atftp version 0.7.git20120829-3.1+b1, consider restricting access to the atftpd daemon functionality to minimize the risk of exploitation until a patch is available. As a temporary workaround, avoid using the assert() function in the atftpd daemon until a fix is provided.

Exploit

Fix

DoS

Assertion Failure

Improper Resource Release

Weakness Enumeration

CWE-617

CWE-404

Related Identifiers

BDU:2020-04361

CVE-2020-6097

DLA-2820-1

OPENSUSE-SU-2020:1736-1

OPENSUSE-SU-2020_1736-1

OPENSUSE-SU-2024:10636-1

USN-6334-1

Affected Products

Astra Linux

Linuxmint

Suse

Ubuntu

Atftp

References · 32

• 🔥 https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-41054 · Exploit
• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2020-1029 · Exploit
• https://cve.org/CVERecord?id=CVE-2020-6097 · Security Note
• https://ubuntu.com/security/CVE-2020-6097 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-41054 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-6097 · Security Note
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0114SE47 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6334-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-6097 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10636-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20220829SE16 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-6097 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-46671 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04361 · Security Note