CVE-2021-41054 Memory corruption in n/a
A buffer overflow in the atftp TFTP server allows remote attackers to execute arbitrary code or cause a denial of service via crafted packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-41054?
CVE-2021-41054 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 13 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
tftpd_file.c in atftp through 0.7.4 has a buffer overflow because buffer-size handling does not properly consider the combination of data, OACK, and other options.
Weakness: CWE-120
Which versions are affected by CVE-2021-41054?
It affects 2 products.
Linux distribution packages (2)
atftp SUSE:Linux Enterprise Server 12 SP5 | All versions | 0.7.0-160.11.1 |
atftp SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 0.7.0-160.11.1 |
Products include Atftp Project Atftp, Debian Debian Linux.
How do I fix CVE-2021-41054?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-41054 being exploited?
There is no known exploitation of CVE-2021-41054 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2021-41054, GHSA-pjhr-q582-mpq7, SUSE-SU-2021:3237-1, UBUNTU-CVE-2021-41054.