CVE-2023-4043: Parsson DoS when parsing numbers from untrusted sources

Published Nov 3, 2023
·
Updated

In Eclipse Parsson before versions 1.1.4 and 1.0.5, Parsing JSON from untrusted sources can lead malicious actors to exploit the fact that the built-in support for parsing numbers with large scale in Java has a number of edge cases where the input text of a number can lead to much larger processing time than one would expect.

To mitigate the risk, parsson put in place a size limit for the numbers as well as their scale.

Affected Software

6 affected componentsFixes available
maven/org.eclipse.parsson:project<1.0.5
1.0.5
maven/org.eclipse.parsson:project>=1.1.0<1.1.4
1.1.4
Eclipse Parsson<1.0.5
Eclipse Parsson>=1.1.0<1.1.4
redhat/parsson<1.1.4
1.1.4
redhat/parsson<1.0.5
1.0.5

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade maven/org.eclipse.parsson:project to a version that resolves this vulnerability.

    Fixed in 1.0.5
  2. Upgrade

    Upgrade maven/org.eclipse.parsson:project to a version that resolves this vulnerability.

    Fixed in 1.1.4
  3. Upgrade

    Upgrade redhat/parsson to a version that resolves this vulnerability.

    Fixed in 1.1.4
  4. Upgrade

    Upgrade redhat/parsson to a version that resolves this vulnerability.

    Fixed in 1.0.5
  5. Upgrade

    Upgrade eclipse-ee4j/parsson to a version that resolves this vulnerability.

    Fixed in 1.1.4
  6. Upgrade

    Upgrade eclipse-ee4j/parsson to a version that resolves this vulnerability.

    Fixed in 1.0.5

Event History

Nov 3, 2023
CVE Published
via MITRE·08:11 AM
Data Sourced
via MITRE·08:11 AM
DescriptionSeverityWeakness
Advisory Published
09:32 AM
Dec 14, 2023
Data Sourced
via Red Hat·06:07 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is CVE-2023-4043?

CVE-2023-4043 is a vulnerability in Eclipse Parsson that allows malicious actors to exploit parsing numbers from untrusted sources.

2

How does CVE-2023-4043 affect Eclipse Parsson?

CVE-2023-4043 affects Eclipse Parsson versions 1.0.5 and 1.1.4, allowing malicious actors to exploit parsing numbers from untrusted sources.

3

What is the severity of CVE-2023-4043?

The severity of CVE-2023-4043 is medium with a CVSS score of 5.9.

4

How can CVE-2023-4043 be exploited?

CVE-2023-4043 can be exploited by providing input text of a number with large scale, leading to larger processing and potential denial of service (DoS) attacks.

5

How can I fix CVE-2023-4043 in Eclipse Parsson?

To fix CVE-2023-4043 in Eclipse Parsson, you should update to versions 1.0.5 or 1.1.4, which contain the necessary fixes for this vulnerability.

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