CVE-2021-22553 is a vulnerability in Google Gerrit
Published on February 17, 2021
Heap Memory exhaustion in Gerrit
Any git operation is passed through Jetty and a session is created. No expiry is set for the session and Jetty does not automatically dispose of the session. Over multiple git actions, this can lead to a heap memory exhaustion for Gerrit servers. We recommend upgrading Gerrit to any of the versions listed above.
Vulnerability Analysis
CVE-2021-22553 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low 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.
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-2021-22553 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2021-22553
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Affected Versions
Google LLC Gerrit:- Version unspecified and below 2.15.22 is affected.
- Version unspecified and below 2.16.26 is affected.
- Version unspecified and below 3.0.16 is affected.
- Version unspecified and below 3.1.12 is affected.
- Version unspecified and below 3.2.7 is affected.
- Version unspecified and below 3.3.2 is affected.
Exploit Probability
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.