cloudflare octorpki CVE-2021-3912 in CloudFlare and Debian Products
Published on November 11, 2021

OctoRPKI crashes when processing GZIP bomb returned via malicious repository

product logo product logo
OctoRPKI tries to load the entire contents of a repository in memory, and in the case of a GZIP bomb, unzip it in memory, making it possible to create a repository that makes OctoRPKI run out of memory (and thus crash).

Github Repository Vendor Advisory NVD

Vulnerability Analysis

CVE-2021-3912 is exploitable 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

What is a Resource Exhaustion Vulnerability?

The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

CVE-2021-3912 has been classified to as a Resource Exhaustion vulnerability or weakness.


Products Associated with CVE-2021-3912

stack.watch emails you whenever new vulnerabilities are published in CloudFlare Octorpki or Debian Linux. Just hit a watch button to start following.

CloudFlare Octorpki
 
Debian Linux
 

Affected Versions

Cloudflare octorpki:

Exploit Probability

EPSS
0.82%
Percentile
52.51%

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.