Medium severity · published Nov 11, 2021
CVE-2021-3911
If the ROA that a repository returns contains too many bits for the IP address then OctoRPKI will crash
6.5
CVSS
0.9%
EPSS
No
On KEV
Description
If the ROA that a repository returns contains too many bits for the IP address then OctoRPKI will crash.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
11.0 · source: NVD
OC
Octorpki · Cloudflare
before 1.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3911
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3911
Third Party Advisory
https://github.com/cloudflare/cfrpki/security/advisories/GHSA-w6ww-fmfx-2x22
Third Party Advisory
https://www.debian.org/security/2022/dsa-5041
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-2022-3616
OctoRPKI crash when maximum iterations number is reached
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