CVE-2013-4517
Description
It was discovered that the Apache Santuario XML Security for Java project allowed Document Type Definitions (DTDs) to be processed when applying Transforms even when secure validation was enabled. A remote attacker could use this flaw to exhaust all available memory on the system, causing a denial of service.
Statement
Fuse ESB 4, Fuse Message Broker 5.2, 5.3, 5.4, Fuse Mediation Router 2.7, 2.8 and Fuse Services Framework 2.3, 2.4 are now in a reduced support phase receiving only Critical impact security fixes. This issue has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Fuse Product Life Cycle: https://access.redhat.com/support/policy/updates/fusesource/
Fuse ESB Enterprise is now in Maintenance Support phase receiving only qualified Important and Critical impact security fixes. This issue has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Fuse Product Life Cycle: https://access.redhat.com/support/policy/updates/fusesource/
Red Hat JBoss BRMS 5; Red Hat JBoss Enterprise Application Platform 4; Red Hat JBoss Enterprise Data Services Platform 5; Red Hat JBoss Enterprise Portal Platform 4 and 5; and Red Hat JBoss Enterprise SOA Platform 4 and 5 are now in Phase 3, Extended Life Support, of their respective life cycles. This issue has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat JBoss Middleware and Red Hat JBoss Operations Network Product Update and Support Policy: https://access.redhat.com/support/policy/updates/jboss_notes/
Common Vulnerability Scoring System (CVSS) Score Details
Info alert: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 v2 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5 | 4.3 | N/A |
| Attack Vector | Network | Network | N/A |
| Access Complexity | Low | Medium | N/A |
| Authentication | None | None | N/A |
| Confidentiality Impact | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | Partial | Partial | N/A |
Vector
Red Hat: AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD: AV:N/AC:M/Au:N/C:N/I:N/A:P
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
If an attacker can trigger the allocation of the limited resources, but the number or size of the resources is not controlled, then the most common result is denial of service. This would prevent valid users from accessing the product, and it could potentially have an impact on the surrounding environment, i.e., the product may slow down, crash due to unhandled errors, or lock out legitimate users. For example, a memory exhaustion attack against an application could slow down the application as well as its host operating system.
Access Control,Other
Technical Impact: Bypass Protection Mechanism; Other
In some cases it may be possible to force the product to "fail open" in the event of resource exhaustion. The state of the product -- and possibly the security functionality - may then be compromised.
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