cloudflare octorpki CVE-2021-3911 in CloudFlare and Debian Products
Published on November 11, 2021

Misconfigured IP address field in ROA leads to OctoRPKI crash

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If the ROA that a repository returns contains too many bits for the IP address then OctoRPKI will crash.

Github Repository Vendor Advisory NVD

Vulnerability Analysis

CVE-2021-3911 can be exploited with network access, requires user interaction and user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
HIGH
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.


Products Associated with CVE-2021-3911

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Affected Versions

Cloudflare octorpki:

Exploit Probability

EPSS
0.88%
Percentile
54.30%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.