CVE-2022-27832 in media.extractor Library
Summary
by MITRE • 04/12/2022
Improper boundary check in media.extractor library prior to SMR Apr-2022 Release 1 allows attackers to cause denial of service via a crafted media file.
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Analysis
by VulDB Data Team • 04/14/2022
The vulnerability identified as CVE-2022-27832 represents a critical flaw within the media.extractor library component that affects systems prior to the SMR Apr-2022 Release 1 security patch. This issue manifests as an improper boundary check that creates a potential avenue for attackers to execute denial of service attacks through the manipulation of media file inputs. The flaw specifically targets the library's handling of media extraction processes, where inadequate validation of input boundaries allows maliciously crafted media files to trigger unexpected behavior in the underlying system components. Such vulnerabilities are particularly dangerous in environments where media processing is a core function, as they can disrupt normal operations and potentially impact user experience or system availability.
The technical implementation of this vulnerability stems from insufficient validation mechanisms within the media extraction library's boundary checking routines. When processing media files, the library fails to properly verify the boundaries of data structures or buffer limits, creating opportunities for attackers to craft media files that exceed expected parameter constraints. This improper boundary handling can lead to memory corruption issues, stack overflow conditions, or other runtime errors that cause the media processing system to crash or become unresponsive. The vulnerability operates at the intersection of software input validation and memory management, where the absence of proper boundary checks creates exploitable conditions that can be leveraged for system disruption.
From an operational impact perspective, this vulnerability presents significant risks to organizations relying on media processing capabilities within their systems. The denial of service condition can result in complete system unavailability for media-related functions, potentially affecting applications such as video streaming services, media management systems, content delivery networks, or any platform that processes multimedia files. Attackers can exploit this weakness by simply providing a specially crafted media file that triggers the boundary check failure, making the attack vector both accessible and effective. The impact extends beyond immediate service disruption to potentially affect business continuity and user satisfaction, particularly in environments where media processing is critical to core operations.
Organizations should implement immediate mitigations including applying the SMR Apr-2022 Release 1 patch or equivalent security updates that address the boundary check implementation in the media.extractor library. Additionally, input validation measures should be strengthened to include additional boundary checks and sanitization of media file inputs before processing. System monitoring should be enhanced to detect unusual patterns in media processing activities that might indicate exploitation attempts. The vulnerability aligns with CWE-129, which addresses improper validation of array index or buffer boundary checks, and represents a specific implementation weakness that could be mapped to ATT&CK technique T1499.004 for network denial of service attacks. Regular security assessments of media processing components and proactive patch management are essential to prevent exploitation of similar boundary check vulnerabilities in other system components.