DescriptionBuffer overflow in the TFTP client in InetUtils 1.4.2 allows remote malicious DNS servers to execute arbitrary code via a large DNS response that is handled by the gethostbyname function.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
atftp (PTS)buster0.7.git20120829-3.2~deb10u3fixed
bookworm, sid0.8.0-2fixed
inetutils (PTS)buster2:1.9.4-7+deb10u1fixed
buster (security)2:1.9.4-7+deb10u2fixed
bookworm, sid2:2.4-2fixed
netkit-tftp (PTS)buster0.17-22fixed
bookworm, sid0.17-25fixed
tftp-hpa (PTS)buster5.2+20150808-1fixed
bookworm, sid5.2+20150808-1.4fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
atftpsource(unstable)(not affected)
inetutilssource(unstable)(not affected)
netkit-tftpsource(unstable)(not affected)
tftp-hpasource(unstable)(not affected)


- inetutils <not-affected> (inetutils 2:1.4.2+20040207-4; not vulnerable and its tftpd is not shipped)
- atftp <not-affected> (atftp checks h_length)
- netkit-tftp <not-affected> (netkit-tftp not vulnerable)
- tftp-hpa <not-affected> (bug #295297; not exploitable)
The address length comes from libc, not the network.

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