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

23857

29 November 2021

29 November 2021

CLOSED

MEDIUM

CVE-2021-22095

Severity

Medium

Vendor

Spring by VMware

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 VMware Products and Versions

Severity is medium unless otherwise noted.

  • 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.

References

History

2021-11-29: Initial vulnerability report published.