A vulnerability was found in libarchive up to version 3.7.7. It has been classified as problematic, affecting the function list of the file bsdunzip.c. This vulnerability allows for a null pointer dereference, which can be exploited locally. The exploit has been disclosed to the public and may be used by attackers. Notably, the vendor was contacted regarding this vulnerability disclosure but did not respond.
The severity of this vulnerability is rated as medium, with a CVSS score of 4.8. This score indicates that while the attack complexity is low and requires low privileges, the impact on system availability is also deemed low. Given the nature of the vulnerability, organizations should address this in their priority patch cycle.
Risk to organizations includes potential service disruptions and exploitation of local systems, which can lead to unauthorized access or manipulation of data. Thus, it is crucial for organizations to assess their exposure and take appropriate actions to mitigate risks.
As of now, there is no public exploit confirmed for this vulnerability, but the possibility of local exploitation remains a concern, warranting immediate attention from security teams.
Vulnerability Details
The vulnerability in libarchive affects versions up to 3.7.7 and has been classified under CWE-404 (Improper Resource Shutdown or Release) and CWE-476 (NULL Pointer Dereference). The official CVE description states that the manipulation leads to a null pointer dereference which can be exploited locally.
The CVSS score of 4.8 indicates a medium severity level, reflecting low attack complexity and low required privileges. The publication date for this vulnerability was February 24, 2025.
Technical Analysis
The root cause of this vulnerability stems from improper handling of null pointers in the bsdunzip.c file, leading to potential application crashes. The attack vector is local, meaning that an attacker must have access to the local system to exploit this vulnerability.
The attack complexity is classified as low, with the required privileges also being low, indicating that an attacker could execute an exploit without needing elevated permissions. There is no user interaction required to trigger this vulnerability, making it easier for attackers to exploit.
In terms of impact, the confidentiality and integrity of the system remain intact, but the availability could be affected, causing service disruptions.
Risk & Impact Analysis
Organizations leveraging libarchive must be aware of the potential risks associated with this vulnerability. Given its classification and the nature of the exploit, the real-world risk includes service disruptions and potential unauthorized access to sensitive information. The blast radius for an exploit could be significant if the vulnerability is leveraged in a multi-tenant environment.
Urgency for remediation is high, as the vulnerability has been publicly disclosed and could be exploited by malicious actors. Organizations should prioritize patching this vulnerability immediately to avoid exploitation risks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects all versions of libarchive prior to the vendor patch, specifically up to version 3.7.7.
Mitigation & Remediation
To mitigate this vulnerability, organizations should apply the latest patches provided by the vendor for libarchive. If a patch is unavailable, implementing strict access controls and monitoring logs for unusual activities can help reduce risk exposure. Additionally, organizations may consider engaging in penetration testing to identify potential weaknesses that could be exploited.
Detection Guidance
Organizations should monitor logs for any signs of unusual behavior related to the libarchive functions. Behavioral anomalies or errors related to the bsdunzip.c file may indicate attempts to exploit this vulnerability. Keeping an eye on access patterns and system changes can also help in early detection.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability in libarchive highlights the importance of robust security practices in software development. It is crucial for security teams to stay informed about potential vulnerabilities in libraries and frameworks they utilize. This incident serves as a reminder to prioritize continuous penetration testing methodologies and maintain an active vulnerability management program that can adapt to changing threats.
Additionally, this vulnerability represents a trend where local vulnerabilities can lead to significant impacts on system integrity. Organizations must regularly audit their systems and dependencies to ensure they are not exposed to known risks. For enhanced security, consider implementing vulnerability management programs that can help in identifying and remediating risks promptly.
Lastly, organizations should engage with the security community for sharing insights and best practices to combat emerging threats. This collaborative approach can enhance the overall security posture against vulnerabilities like CVE-2025-1632.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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