A flaw was found in REXML. A remote attacker could exploit inefficient regular expression (regex) parsing when processing hex numeric character references (&#x…;) in XML documents. This could lead to a Regular Expression Denial of Service (ReDoS), impacting the availability of the affected component. This issue is the result of an incomplete fix for CVE-2024-49761.
Weakness
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat Satellite 6.16 for RHEL 8 | RedHat | puppet-agent-0:8.8.1-3.el8sat | * |
| Red Hat Satellite 6.16 for RHEL 8 | RedHat | puppet-agent-0:8.8.1-3.el8sat | * |
| Red Hat Satellite 6.16 for RHEL 9 | RedHat | puppet-agent-0:8.8.1-3.el9sat | * |
| Red Hat Satellite 6.16 for RHEL 9 | RedHat | puppet-agent-0:8.8.1-3.el9sat | * |
| Red Hat Satellite 6.17 for RHEL 9 | RedHat | puppet-agent-0:8.8.1-3.el9sat | * |
| Red Hat Satellite 6.17 for RHEL 9 | RedHat | puppet-agent-0:8.8.1-3.el9sat | * |
| Satellite Client 6 for RHEL 8 | RedHat | puppet-agent-0:7.34.0-4.el8sat | * |
| Satellite Client 6 for RHEL 9 | RedHat | puppet-agent-0:7.34.0-4.el9sat | * |
Extended Description
Attackers can create crafted inputs that
intentionally cause the regular expression to use
excessive backtracking in a way that causes the CPU
consumption to spike.