CVE-2021-43174
Publication date 9 November 2021
Last updated 25 August 2025
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| routinator | 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release | |
| cfrpki | 22.04 LTS jammy |
Not affected
|
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
CVSS version: CVSS v3.0
Base score
7.5 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H