CVE-2023-4043

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Last Modified: UTC

ImportantImportant ImpactWhat does this mean?

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Description

A flaw was found in Eclipse Parsson library when processing untrusted source content. This issue may cause a Denial of Service (DoS) due to built-in support for parsing numbers with a large scale, and some cases where processing a large number may take much more time than expected.

A flaw was found in Eclipse Parsson library when processing untrusted source content. This issue may cause a Denial of Service (DoS) due to built-in support for parsing numbers with a large scale, and some cases where processing a large number may take much more time than expected.

Statement

Red Hat rates this as an important impact since one needs to process untrusted and if there is no sanitization a Denial of Service (DoS) may happen.

Red Hat rates this as an important impact since one needs to process untrusted and if there is no sanitization a Denial of Service (DoS) may happen.

Mitigation

Avoid processing untrusted sources content in order to minimize the chance for Denial of Service attack.

Additional information

  • Bugzilla 2254594: parsson: Denial of Service due to large number parsing
  • CWE-834: Excessive Iteration
  • FAQ: Frequently asked questions about CVE-2023-4043

Common Vulnerability Scoring System (CVSS) Score Details

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 HatNVD

CVSS v3 Base Score

7.5

7.5

Attack Vector

Network

Network

Attack Complexity

Low

Low

Privileges Required

None

None

User Interaction

None

None

Scope

Unchanged

Unchanged

Confidentiality Impact

None

None

Integrity Impact

None

None

Availability Impact

High

High

CVSS v3 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

Understanding the Weakness (CWE)

CWE-834

Availability

Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Amplification; DoS: Crash, Exit, or Restart

Excessive looping will cause unexpected consumption of resources, such as CPU cycles or memory. The product's operation may slow down, or cause a long time to respond. If limited resources such as memory are consumed for each iteration, the loop may eventually cause a crash or program exit due to exhaustion of resources, such as an out-of-memory error.

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

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