CVE-2008-0554 in netpbm
Summary
by MITRE
Buffer overflow in the readImageData function in giftopnm.c in netpbm before 10.27 in netpbm before 10.27 allows remote user-assisted attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted GIF image, a similar issue to CVE-2006-4484.
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Analysis
by VulDB Data Team • 06/01/2025
The vulnerability identified as CVE-2008-0554 represents a critical buffer overflow flaw within the netpbm image processing library, specifically affecting the readImageData function in the giftopnm.c component. This issue exists in netpbm versions prior to 10.27 and poses significant security risks to systems that process GIF image files. The vulnerability is classified under CWE-121 as a stack-based buffer overflow, where insufficient bounds checking allows maliciously crafted input to overwrite adjacent memory locations. The flaw operates by failing to properly validate the dimensions and data structure of GIF images before attempting to read and process image data, creating opportunities for attackers to manipulate memory layout and execution flow.
The technical exploitation of this vulnerability occurs when a remote attacker crafts a specially malformed GIF image that triggers the buffer overflow during the image parsing process. When the readImageData function processes this malicious input, it attempts to copy image data into a fixed-size buffer without adequate validation of the source data length. This allows the attacker to overwrite adjacent memory regions including return addresses, function pointers, or other critical program state information. The vulnerability's similarity to CVE-2006-4484 demonstrates a persistent pattern in netpbm's image parsing logic where buffer overflow conditions remain unaddressed across multiple versions, suggesting deeper architectural issues in input validation mechanisms.
The operational impact of CVE-2008-0554 extends beyond simple denial of service to potentially enable remote code execution, making it a severe security concern for systems that process untrusted image content. Systems utilizing netpbm for image conversion, web applications handling user-uploaded GIF files, or any service that automatically processes GIF images become vulnerable to exploitation. The vulnerability can be leveraged by attackers to crash services, potentially leading to system instability, resource exhaustion, or unauthorized code execution. According to ATT&CK framework category T1203, this vulnerability represents a privilege escalation vector through application-level exploitation, while T1499 indicates potential for service disruption and system availability compromise.
Mitigation strategies for this vulnerability require immediate patching of affected netpbm installations to version 10.27 or later, which contains the necessary buffer overflow protections and input validation improvements. Organizations should implement comprehensive input validation measures for all image processing workflows, including size limitations, format verification, and sandboxed execution environments for image parsing operations. Network segmentation and access controls should limit exposure to vulnerable services, while monitoring systems should be configured to detect unusual processing patterns or service disruptions that may indicate exploitation attempts. Additionally, implementing proper error handling and graceful degradation mechanisms in applications using netpbm can help prevent complete system crashes even if exploitation occurs, as outlined in the NIST Cybersecurity Framework's detection and response capabilities.