CVE-2021-22095: Spring-AMQP Remote Denial of Service - Out of Memory Error with a Large Message Body

MEDIUM | NOVEMBER 29, 2021 | CVE-2021-22095

Description

The Spring AMQP Message object, in its toString() method, will create a new String object from the message body, regardless of its size.

This can cause an OOM Error with a large message body.

Affected Spring Products and Versions

Spring AMQP
- 2.2.0 - 2.2.19
- 2.3.0 - 2.3.11

Mitigation

Users of affected versions should apply the following mitigation. 2.3.x users should upgrade to 2.3.12. 2.2.x users should upgrade to 2.2.20. No other steps are necessary. The toString() method now only converts the body if its length is 50 or fewer bytes. Releases that have fixed this issue include:

Spring AMQP
- 2.4.0
- 2.3.12
- 2.2.20

Credit

This issue was identified and responsibly reported by Vasily Kochnev.

History

2021-11-29: Initial vulnerability report published.

Reporting a vulnerability

The VMware Security Response team provides a single point of contact for the reporting of security vulnerabilities in VMware Tanzu products and coordinates the process of investigating any reported vulnerabilities.

To report a security vulnerability in a VMware service or product please refer to the VMware Security Response Policy.