High severity · published Oct 28, 2022
CVE-2022-3616
OctoRPKI crash when maximum iterations number is reached
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
Attackers can create long chains of CAs that would lead to OctoRPKI exceeding its max iterations parameter. In consequence it would cause the program to crash, preventing it from finishing the validation and leading to a denial of service. Credits to Donika Mirdita and Haya Shulman - Fraunhofer SIT, ATHENE, who discovered and reported this vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OC
OctoRPKI · Cloudflare
before <1.4.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-3616
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-3616
Third Party Advisory
https://github.com/cloudflare/cfrpki/security/advisories/GHSA-pmw9-567p-68pc
More from OctoRPKI
9.8
CVE-2021-3907
OctoRPKI does not escape a URI with a filename containing "..", this allows a repository to create a file, (ex
7.5
CVE-2021-3910
OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\0) character)
7.5
CVE-2021-3909
OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever
7.5
CVE-2021-3908
OctoRPKI does not limit the depth of a certificate chain, allowing for a CA to create children in an ad-hoc fashion, thereby making tree traversal never end
7.5
CVE-2021-3761
Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate