CVE-2022-2566 is a critical vulnerability affecting FFMPEG, specifically introduced in version 5.1. This vulnerability allows an attacker to exploit a heap out-of-bounds memory write. The flaw is rooted in the size calculation within the `build_open_gop_key_points()` function, where it iterates through entries and adds `sc->ctts_data[i].count` to `sc->sample_offsets_count`. This can result in an integer overflow, causing insufficient memory allocation with `av_calloc()`, potentially leading to remote code execution through malicious mp4 files.
The CVSS score for this vulnerability is 9, indicating a critical severity level. This score suggests that the vulnerability can be exploited over a network with high impact on confidentiality, integrity, and availability. The attack complexity is rated as high, requiring no privileges or user interaction, making it particularly dangerous for unpatched systems.
Risk to organizations includes potential unauthorized access and control over affected systems. Given the critical nature of this vulnerability, organizations should prioritize patching immediately. The recommended version upgrade is beyond commit c953baa084607dd1d84c3bfcce3cf6a87c3e6e05 to mitigate the risks associated with this vulnerability.
As of now, there are no known public exploits or proofs of concept available for this vulnerability, but the impact of a successful exploit can be severe, emphasizing the importance of maintaining updated software.
This vulnerability represents a significant threat due to its ability to be exploited remotely, alongside the complexity involved in its exploitation. Organizations utilizing FFMPEG should take immediate action to secure their systems.
Vulnerability Details
CVE-2022-2566 is categorized as a heap out-of-bounds write vulnerability. The root cause lies in improper size calculations within the `build_open_gop_key_points()` function. The official description indicates that this vulnerability can facilitate remote code execution by processing specially crafted mp4 files.
The primary CVSS score assigned is 9.0, highlighting its critical severity. It is essential to recognize that the attack vector is network-based, with a high attack complexity, indicating a sophisticated exploitation method may be required.
Affected product: FFMPEG. The vulnerability was disclosed on September 23, 2022, and has been modified since its initial publication. The CWE classifications related to this vulnerability include CWE-122 (Heap-Based Buffer Overflow) and CWE-190 (Integer Overflow or Wraparound).
Technical Analysis
The vulnerability arises from a faulty size calculation in the FFMPEG codebase. The function `build_open_gop_key_points()` fails to properly validate data sizes, leading to potential memory corruption. This can allow attackers to manipulate the memory allocation process, creating a condition for a heap out-of-bounds write.
The attack vector is network-based, meaning an attacker does not require physical access to exploit the vulnerability. The complexity is rated as high due to the requirement for specific conditions to be met during exploitation. Importantly, no user interaction is needed, which elevates the risk for users of affected versions.
Confidentiality, integrity, and availability impacts are all rated high, indicating that successful exploitation can lead to severe consequences, including unauthorized access and control over affected systems.
Risk & Impact Analysis
Real-world deployment risk is high due to the critical nature of the vulnerability and its ability to be exploited remotely. Organizations utilizing FFMPEG versions affected by CVE-2022-2566 face the potential for unauthorized access, significant data breaches, and operational disruptions.
The blast radius for an exploit could affect any system utilizing the vulnerable software, emphasizing the need for immediate action. Given the CVSS score of 9.0, organizations should prioritize patching immediately to mitigate this risk.
With the information indicating that the vulnerability is not included in the KEV (Known Exploited Vulnerabilities) catalog, organizations may not have external pressure to patch, but the inherent risks necessitate swift action regardless.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability impacts FFMPEG versions starting from 5.1. Organizations should upgrade to versions beyond commit c953baa084607dd1d84c3bfcce3cf6a87c3e6e05 to remediate this issue.
Mitigation & Remediation
To mitigate the risks associated with CVE-2022-2566, organizations should promptly apply the latest patches. Upgrading to a version of FFMPEG past commit c953baa084607dd1d84c3bfcce3cf6a87c3e6e05 is essential. If immediate patching is not possible, organizations should consider implementing network controls to restrict access to systems running vulnerable versions.
penetration testing services can assist organizations in identifying and remediating similar vulnerabilities.
Detection Guidance
Organizations should monitor logs for indicators of exploitation, including unexpected application crashes or abnormal memory usage patterns. Behavioral anomalies related to media file processing may also indicate a potential attack vector.
Network signatures associated with malicious mp4 file processing should be established, and system changes should be closely monitored to detect unauthorized modifications.
AppSecure Threat Intelligence Insight
CVE-2022-2566 highlights the ongoing risks associated with media processing libraries and the potential for serious vulnerabilities arising from memory management issues. It serves as a reminder for security teams to remain vigilant in applying security patches and conducting regular code reviews.
This vulnerability can be seen as part of a broader trend in software vulnerabilities where improper memory handling can lead to severe exploits. Organizations should prioritize a robust security framework and consider adopting best practices in secure coding to minimize such risks.
For further insights, organizations can explore our resources on penetration testing methodology and vulnerability management program design to enhance their security posture against potential vulnerabilities.
Finally, organizations should keep abreast of emerging trends in vulnerability exposure and response strategies to ensure they are adequately prepared to defend against future security threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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