Vulnerability identifier: #VU80393
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
atftp
Web applications /
Modules and components for CMS
Vendor: Dennis Kaarsemaker
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary in tftpd_file.c. A remote attacker can send specially crafted data to the server, trigger memory corruption and perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
atftp: 0.7.1 - 0.7.git20120829-3.1+b1
External links
http://sourceforge.net/p/atftp/code/ci/d255bf90834fb45be52decf9bc0b4fb46c90f205/
http://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-41054
http://lists.debian.org/debian-lts-announce/2021/11/msg00014.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.