CVE-2021-43172
published 2021-11-09CVE-2021-43172: NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP repositories of infinite length causing it to never finish a validation run. In RPKI, a…
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.22%
65.7th percentile
NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP repositories of infinite length causing it to never finish a validation run. In RPKI, a CA can choose the RRDP repository it wishes to publish its data in. By continuously generating a new child CA that only consists of another CA using a different RRDP repository, a malicious CA can create a chain of CAs of de-facto infinite length. Routinator prior to version 0.10.2 did not contain a limit on the length of such a chain and will therefore continue to process this chain forever. As a result, the validation run will never finish, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | rpki-client | < rpki-client 7.5-1 (bookworm) | rpki-client 7.5-1 (bookworm) |
| nlnet_labs | routinator | >= 0 < 0.10.2 | 0.10.2 |
| nlnet_labs | routinator | unspecified – 0.10.1 | — |
| nlnetlabs | routinator | < 0.10.2 | 0.10.2 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
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GHSA
Routinator infinite loop vulnerability
ghsa·2022-05-24
CVE-2021-43172 [HIGH] CWE-674 Routinator infinite loop vulnerability
Routinator infinite loop vulnerability
NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP repositories of infinite length causing it to never finish a validation run. In RPKI, a CA can choose the RRDP repository it wishes to publish its data in. By continuously generating a new child CA that only consists of another CA using a different RRDP repository, a malicious CA can create a chain of CAs of de-facto infinite length. Routinator prior to version 0.10.2 did not contain a limit on the length of such a chain and will therefore continue to process this chain forever. As a result, the validation run will never finish, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.
OSV
Routinator infinite loop vulnerability
osv·2022-05-24
CVE-2021-43172 [HIGH] Routinator infinite loop vulnerability
Routinator infinite loop vulnerability
NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP repositories of infinite length causing it to never finish a validation run. In RPKI, a CA can choose the RRDP repository it wishes to publish its data in. By continuously generating a new child CA that only consists of another CA using a different RRDP repository, a malicious CA can create a chain of CAs of de-facto infinite length. Routinator prior to version 0.10.2 did not contain a limit on the length of such a chain and will therefore continue to process this chain forever. As a result, the validation run will never finish, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.
OSV
CVE-2021-43172: NLnet Labs Routinator prior to 0
osv·2021-11-09·CVSS 7.5
CVE-2021-43172 [HIGH] CVE-2021-43172: NLnet Labs Routinator prior to 0
NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP repositories of infinite length causing it to never finish a validation run. In RPKI, a CA can choose the RRDP repository it wishes to publish its data in. By continuously generating a new child CA that only consists of another CA using a different RRDP repository, a malicious CA can create a chain of CAs of de-facto infinite length. Routinator prior to version 0.10.2 did not contain a limit on the length of such a chain and will therefore continue to process this chain forever. As a result, the validation run will never finish, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.
Debian
CVE-2021-43172: rpki-client - NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP reposito...
vendor_debian·2021·CVSS 7.5
CVE-2021-43172 [HIGH] CVE-2021-43172: rpki-client - NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP reposito...
NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP repositories of infinite length causing it to never finish a validation run. In RPKI, a CA can choose the RRDP repository it wishes to publish its data in. By continuously generating a new child CA that only consists of another CA using a different RRDP repository, a malicious CA can create a chain of CAs of de-facto infinite length. Routinator prior to version 0.10.2 did not contain a limit on the length of such a chain and will therefore continue to process this chain forever. As a result, the validation run will never finish, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.
Scope: local
bookworm: resolved (fixed in 7
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-11-09
Published