CVE-2020-6097

NameCVE-2020-6097
DescriptionAn exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp 0.7.git20120829-3.1+b1. 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2820-1, ELA-517-1
NVD severitymedium
Debian Bugs970066

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
atftp (PTS)jessie, jessie (lts)0.7.git20120829-1+deb8u2vulnerable
stretch0.7.git20120829-3.1~deb9u1vulnerable
stretch (security)0.7.git20120829-3.1~deb9u2fixed
buster0.7.git20120829-3.2~deb10u2fixed
bullseye0.7.git20120829-3.3+deb11u1fixed
sid, bookworm0.7.git20210915-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
atftpsourcejessie(unfixed)end-of-life
atftpsourcestretch0.7.git20120829-3.1~deb9u2DLA-2820-1
atftpsourcebuster0.7.git20120829-3.2~deb10u1
atftpsource(unstable)0.7.git20120829-3.2970066

Notes

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1029
https://sourceforge.net/u/peterkaestle/atftp/ci/96409ef3b9ca061f9527cfaafa778105cf15d994/

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