A vulnerability has been identified in the libarchive library, specifically within the archive_read_format_rar_seek_data() function. This vulnerability allows an integer overflow that can ultimately lead to a double-free condition. Exploiting a double-free vulnerability can result in memory corruption, enabling an attacker to execute arbitrary code or cause a denial-of-service condition. Organizations using affected versions of libarchive should be aware of this risk and take immediate action.
With a CVSS score of 7.8, this vulnerability is classified as high severity, indicating that it poses a significant threat to systems running the affected software. Due to the potential for arbitrary code execution, organizations should prioritize patching immediately.
The vulnerability affects several products, including Red Hat Enterprise Linux and OpenShift Container Platform, making it critical for organizations relying on these technologies to assess their exposure. No public exploit or proof-of-concept is currently available, but the exploitability of this vulnerability is considered high.
Given the potential impact, organizations should address this vulnerability in their priority patch cycle and monitor for any updates from Red Hat regarding remediation.
Vulnerability Details
A vulnerability has been identified in the libarchive library, specifically within the archive_read_format_rar_seek_data() function. This flaw involves an integer overflow that can ultimately lead to a double-free condition. Exploiting a double-free vulnerability can result in memory corruption, enabling an attacker to execute arbitrary code or cause a denial-of-service condition.
The vulnerability has a CVSS score of 7.8, indicating a high severity level. Affected products include libarchive, OpenShift Container Platform, and Red Hat Enterprise Linux across various versions. The vulnerability was published on June 9, 2025.
Technical Analysis
The root cause of this vulnerability is an integer overflow in the archive_read_format_rar_seek_data() function. This flaw allows for a double-free condition, which can lead to memory corruption. The attack vector is local, meaning an attacker must have access to the system to exploit this vulnerability. The required privileges are none, and user interaction is required to trigger the exploit.
The potential impacts of this vulnerability include a high confidentiality impact, high integrity impact, and high availability impact, making it critical for organizations to address it promptly.
Risk & Impact Analysis
Risk to organizations includes the possibility of memory corruption and arbitrary code execution, which can lead to further exploitation of the system. The blast radius is significant, as multiple products are affected, including Red Hat Enterprise Linux and OpenShift Container Platform. Organizations should assess their exposure and prioritize remediation actions based on the severity of this vulnerability.
Given the CVSS score and exploitability assessment, organizations should address this vulnerability in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions are affected by this vulnerability: libarchive prior to 3.8.0, Red Hat OpenShift Container Platform 4.0, and Red Hat Enterprise Linux 6.0 through 10.0.
Mitigation & Remediation
Organizations should prioritize patching affected systems by updating to the latest versions of libarchive, OpenShift Container Platform, and Red Hat Enterprise Linux. If immediate patching is not feasible, organizations should implement workarounds and monitor for any unusual activity in their systems.
Further guidance can be found in the context of penetration testing to identify potential vulnerabilities in your environment.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor logs for unusual behavior related to libarchive and the affected versions of Red Hat products. Behavioral anomalies that could indicate exploitation include unexpected crashes or memory access violations.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its representation of the need for robust memory management in libraries. Security teams should take this incident as a lesson to ensure thorough testing of library functions to prevent similar vulnerabilities in the future.
This vulnerability highlights the importance of continuous security assessments and the need for organizations to be vigilant about vulnerabilities in critical libraries.
Organizations should consider implementing a vulnerability management program to better manage and respond to potential threats.
Engaging in penetration testing can also help identify other vulnerabilities within the organization's systems.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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