ArchLinux: 202101-24: atftp: denial of service
Summary
An exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp 0.7.2. 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.
Resolution
Upgrade to 0.7.2-3.
# pacman -Syu "atftp>=0.7.2-3"
The problem has been fixed upstream but no release is available yet.
References
https://bugs.archlinux.org/task/69175 https://talosintelligence.com/vulnerability_reports/TALOS-2020-1029 https://sourceforge.net/u/peterkaestle/atftp/ci/96409ef3b9ca061f9527cfaafa778105cf15d994/ https://security.archlinux.org/CVE-2020-6097
Workaround
None.