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The tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a TFTP read (aka RRQ) request with a malformed blksize option.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade dnsmasq | Dec 1, 2016 | Sep 2, 2009 |
| Debian | — | Upgrade dnsmasq | Jul 30, 2024 | Sep 2, 2009 |
| Freebsd | — | Upgrade dnsmasq | Dec 10, 2025 | Sep 2, 2009 |
| Gentoo Linux | — | Upgrade net-dns/dnsmasq. | Oct 30, 2017 | Sep 2, 2009 |
| Oracle_linux | — | Upgrade dnsmasq | Oct 16, 2024 | Sep 2, 2009 |
| Suse | — | Upgrade dnsmasq | Feb 17, 2015 | Sep 2, 2009 |
| Ubuntu | — | Upgrade dnsmasq-base | Nov 8, 2024 | Sep 2, 2009 |
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