CVE-2021-43174

cfrpki: NLnet Labs Routinator versions 0.9.0 up to and including 0.10.1, support the gzip transfer encoding when querying RRD...

CVE-2021-43174 is fixed in cfrpki on 1 platform by DEBIAN-CVE-2021-43174 (version 1.4.0-1), released November 9, 2021. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0113
66th percentile

NLnet 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.

Where it's fixed

ProductFixed inFixReleased
Linux
cfrpki · Debian 12.15 (bookworm) 1.4.0-1 DEBIAN-CVE-2021-43174 Nov 9, 2021

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