CVE Database›CVE-2024-49761

CVE-2024-49761

rexml: REXML ReDoS vulnerability

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · October 28, 2024

Updated · June 30, 2026

Description

A flaw was found in the ReXML XML toolkit for Ruby. Parsing XML data containing a large number of digits between &# and x...; in a hex numeric character reference (&#x...;) can trigger a regular expression denial of service (ReDoS) condition, leading to a denial of service.

Statement

This vulnerability is rated as a moderate severity because it allows attackers to exploit inefficient regex parsing in hex numeric character references (&#x...;), causing a ReDoS and impacting availability, it requires specific malicious input but does not affect confidentiality or integrity.

Satellite employs multiple versions of ReXML in the Puppet Agent and Server components across varying versions of Satellite:

  • In Satellite 6.15 (on RHEL8), the Puppet Agent component uses ReXML version 7.28-0-1 and IS affected.

  • In Satellite 6.15 (on RHEL8), the Satellite server component uses ReXML version 7.17.2-1 and is NOT affected.

  • In Satellite 6.16 and 6.17 (on RHEL8 and RHEL9), the Puppet Agent component uses ReXML version 8.8.1-1 and is NOT affected.

  • In Satellite 6.16 and 6.17 (on RHEL8 and RHEL9), the Satellite server component uses ReXML version 8.6.2-2 and IS affected.

To reiterate, only the Puppet Agent component in Satellite 6.15 and the Satellite server component in Satellite 6.16 and 6.17 are affected. Any other component/Satellite version combinations are considered not-affected.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-1333 · Inefficient Regular Expression Complexity