CVE-2014-10022 in Traffic Server
Summary
by MITRE
Apache Traffic Server before 5.1.2 allows remote attackers to cause a denial of service via unspecified vectors, related to internal buffer sizing.
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Analysis
by VulDB Data Team • 04/11/2022
Apache Traffic Server version 5.1.1 and earlier contains a vulnerability that enables remote attackers to induce denial of service conditions through unspecified vectors related to internal buffer sizing mechanisms. This vulnerability falls under the category of insufficient input validation and improper error handling within the software's memory management subsystem. The flaw manifests when the system processes certain network requests that trigger internal buffer allocation and sizing operations, leading to potential buffer overflow conditions or memory corruption scenarios that can cause the application to crash or become unresponsive. The vulnerability is particularly concerning as it operates at the core networking layer where the server handles incoming client requests, making it accessible to any remote attacker without authentication requirements. The unspecified vectors suggest that multiple attack paths may exist within the buffer sizing logic, potentially affecting various aspects of the server's operation including HTTP request processing, cache management, or connection handling. This type of vulnerability is classified as a weakness in the software's memory management practices, which aligns with CWE-122 - Heap-based Buffer Overflow and CWE-772 - Missing Release of Resource after Effective Lifetime. The attack surface is broad since any network interaction with the affected server could potentially trigger the vulnerable code paths, making this a critical issue for systems running older versions of the software. Organizations using Apache Traffic Server in production environments should prioritize immediate remediation to prevent potential exploitation that could disrupt service availability for legitimate users. The vulnerability represents a fundamental flaw in how the system manages memory resources during normal operational procedures, highlighting the importance of proper buffer sizing and bounds checking in network service applications.
The operational impact of this vulnerability extends beyond simple service disruption to potentially compromise the overall stability and reliability of the traffic server infrastructure. When triggered, the denial of service condition can cause the Apache Traffic Server process to terminate unexpectedly or enter a state where it cannot properly handle new incoming requests, effectively rendering the caching and proxy services unavailable to clients. This scenario creates cascading effects throughout the network infrastructure, particularly in environments where the traffic server serves as a critical component for content delivery, load balancing, or caching operations. The vulnerability's remote exploitability means that attackers can initiate the attack from any location on the internet without requiring physical access or elevated privileges, making it particularly dangerous for publicly exposed services. The internal buffer sizing issue suggests that the system's memory allocation algorithms may not properly validate input parameters or may fail to account for edge cases in request handling, leading to situations where buffer sizes are either insufficient for legitimate data or excessively large, consuming system resources. This type of vulnerability is categorized under the ATT&CK framework as a Denial of Service attack pattern, specifically targeting system resources through memory manipulation techniques. The lack of specific vector details in the CVE description indicates that the vulnerability may be present across multiple code paths within the server's networking stack, potentially affecting various protocols and service endpoints. The vulnerability's presence in the buffer sizing logic implies that it could be exploited through carefully crafted requests that manipulate the size parameters used during memory allocation, leading to either memory exhaustion or corruption that results in process termination.
Mitigation strategies for this vulnerability should include immediate deployment of the patched version 5.1.2 or later, which contains the necessary fixes for the buffer sizing issues. Organizations should conduct comprehensive testing of the updated software to ensure that the patches do not introduce compatibility issues with existing configurations or customizations. Network administrators should implement monitoring solutions to detect unusual traffic patterns or service disruptions that might indicate exploitation attempts, particularly focusing on the traffic server's operational metrics and error logs. The fix addresses the root cause by implementing proper bounds checking and validation of buffer size parameters during request processing, preventing the conditions that lead to memory corruption or resource exhaustion. Additionally, organizations should consider implementing network-level protections such as rate limiting, connection throttling, and intrusion detection systems to reduce the effectiveness of potential exploitation attempts. The vulnerability demonstrates the importance of regular security updates and the need for robust input validation mechanisms in network service applications. Security teams should also review their incident response procedures to ensure preparedness for potential denial of service attacks targeting critical infrastructure components. The fix likely includes enhanced memory management practices and improved error handling for buffer allocation operations, aligning with industry best practices for secure coding and resource management. Organizations should also perform vulnerability assessments to identify any other instances of similar buffer sizing issues within their software stack and implement defensive coding practices to prevent similar vulnerabilities from emerging in future development cycles.