CVE-2021-43174

NameCVE-2021-43174
DescriptionNLnet Labs Routinator versions 0.9.0 up to and including 0.10.1, support the gzip transfer encoding when querying RRDP repositories. This encoding can be used by an RRDP repository to cause an out-of-memory crash in these versions of Routinator. RRDP uses XML which allows arbitrary amounts of white space in the encoded data. The gzip scheme compresses such white space extremely well, leading to very small compressed files that become huge when being decompressed for further processing, big enough that Routinator runs out of memory when parsing input data waiting for the next XML element.
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)
ReferencesDSA-5041-1
NVD severitymedium
Debian Bugs929024

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
cfrpki (PTS)bullseye1.2.2-1vulnerable
bullseye (security)1.4.2-1~deb11u1fixed
bookworm, sid1.4.2-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
cfrpkisourcebullseye1.4.2-1~deb11u1DSA-5041-1
cfrpkisource(unstable)1.4.0-1
routinatorITP929024

Notes

https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-43172_CVE-2021-43173_CVE-2021-43174.txt
https://github.com/NLnetLabs/routinator/pull/667

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