CVE-2020-11612
Description
A flaw was found in Netty in the way it handles the amount of data it compresses and decompresses. The Compression/Decompression codecs should enforce memory allocation size limits to avoid an Out of Memory Error (OOME) or exhaustion of the memory pool.
Statement
In OpenShift Container Platform end users don't have direct access to send requests to ElasticSearch. A user could need access to the ElasticSearch service on the internal cluster network in order to be able to send malicious requests to it.
Third party scanners flagging Red Hat Satellite due to availability of the higher version packages in Red Hat AMQ Clients (through errata RHSA-2020:2605) compare to the qpid packages from Satellite Tools repository. qpid dependency fixed in errata RHSA-2020:2605 was for Red Hat AMQ Clients and it doesn't necessarily mean that packages from Satellite Tools are affected. These are two different products with different architecture and code-base. Updating the packages from any other repository than the Satellite-tools repository is not recommended for Satellite Customers.
Red Hat Satellite 6.7 and earlier ship affected version of netty, however, there is no external connection being exposed and it is used by only Artemis to open an internal connection within the JVM. Since netty does not come into contact with untrusted data, vulnerability is not exposed in product code and there is no breach of Confidentiality, Integrity or Availability expected from this vulnerability. We may update the netty and its dependency in a future release.
More information regarding Satellite related packages can be found on KCS: https://access.redhat.com/solutions/5200591
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | 7.5 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Red Hat CVSS v3 Score Explanation
Red Hat Products do not enable the some conditions required for this flaw, and as such have a base score that differs from NVD's base evaluation, C:H/I:H -> C:N/I:N, as this issue only appears to impact the availability as a result of memory pool exhaustion or Out of Memory Error (OOME).
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
