CVE-2017-16898 in libming
Summary
by MITRE
The printMP3Headers function in util/listmp3.c in libming v0.4.8 or earlier is vulnerable to a global buffer overflow, which may allow attackers to cause a denial of service via a crafted file, a different vulnerability than CVE-2016-9264.
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Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-16898 affects the libming library version 0.4.8 and earlier, specifically within the printMP3Headers function located in util/listmp3.c. This represents a critical buffer overflow condition that occurs when processing specially crafted MP3 files, creating a significant security risk for systems that utilize this library for media file handling. The flaw manifests as a global buffer overflow, indicating that the vulnerability exists in a globally accessible memory region rather than within a local function scope, which can lead to more severe exploitation vectors and potentially allow attackers to execute arbitrary code or cause system instability.
The technical implementation of this vulnerability stems from inadequate input validation and memory management within the printMP3Headers function, which processes MP3 file headers without proper bounds checking on the data it reads. When the library encounters malformed MP3 files with oversized or malformed header structures, the function fails to validate the size of incoming data against allocated buffer boundaries, resulting in memory corruption that can overwrite adjacent memory locations. This type of vulnerability falls under the CWE-121 category of Stack-based Buffer Overflow, though the global nature of the overflow suggests a more complex memory corruption scenario that could involve heap-based or global buffer overflows as defined in CWE-122 and CWE-125. The vulnerability is particularly concerning because it can be triggered through normal file processing operations, making it difficult to prevent without proper input sanitization.
From an operational impact perspective, this vulnerability creates substantial risk for applications that depend on libming for MP3 file handling, including media processing software, content management systems, and multimedia applications. Attackers can exploit this flaw by crafting malicious MP3 files designed to trigger the buffer overflow during file parsing, leading to denial of service conditions that can crash applications or cause system instability. The vulnerability's similarity to CVE-2016-9264 indicates a pattern of issues within the same library component, suggesting that multiple buffer overflow vulnerabilities may exist in the MP3 processing functionality. This creates a broader security landscape concern where applications using libming could be targeted through various attack vectors that leverage different aspects of the same underlying codebase, potentially enabling more sophisticated exploitation techniques.
Mitigation strategies for CVE-2017-16898 should prioritize immediate library updates to versions that address the buffer overflow conditions, as this represents the most effective approach to eliminating the vulnerability. Organizations should implement input validation measures that sanitize MP3 file headers before processing, including checking for expected header sizes and validating data structures against known good formats. The implementation of address space layout randomization and stack canaries can provide additional defense-in-depth measures, though these are secondary protections against the primary issue of inadequate buffer bounds checking. Security teams should also consider implementing file format validation mechanisms that detect and reject malformed MP3 files at the application level, particularly in environments where third-party media files are processed. From an ATT&CK framework perspective, this vulnerability maps to the T1203 technique of Exploitation for Client Execution, where attackers leverage application vulnerabilities to execute malicious code or cause denial of service, and the T1068 technique of Exploitation for Privilege Escalation when the vulnerable application has elevated privileges.
The broader implications of this vulnerability extend beyond immediate denial of service conditions, as buffer overflows in media processing libraries can enable more sophisticated attacks including remote code execution and privilege escalation when combined with other vulnerabilities. System administrators should conduct comprehensive vulnerability assessments to identify all applications that depend on libming and ensure proper patch management protocols are in place. Regular security monitoring should be implemented to detect potential exploitation attempts through malformed MP3 file submissions, and network-based intrusion detection systems should be configured to flag unusual file processing patterns that may indicate exploitation attempts. The vulnerability also highlights the importance of maintaining up-to-date third-party libraries and implementing comprehensive software supply chain security measures to prevent the introduction of known vulnerabilities into production environments.