A flaw was discovered in GNU libiberty within demangle_path() in rust-demangle.c, distributed in GNU Binutils version 2.36. This vulnerability allows a crafted symbol to exhaust stack memory, resulting in a crash. With a CVSS score of 7.5, this high-severity vulnerability poses significant risks to organizations using affected GNU Binutils versions.
The vulnerability affects systems that utilize GNU Binutils, which is critical for various software development tasks. Given the potential impact on system availability, organizations must address this vulnerability promptly.
Currently, there are no known public exploits for this vulnerability, but its presence in the wild could lead to disruptions if not patched. Organizations should assess their exposure and implement the necessary updates.
Urgency for defenders is high, as the availability impact of this vulnerability can disrupt essential services and operations.
Vulnerability Details
The official description of this vulnerability indicates that it resides in the GNU Binutils suite. The flaw is classified under CWE-674, which refers to 'Uncontrolled Resource Consumption.' This vulnerability is particularly critical due to its potential effects on system stability.
The CVSS score of 7.5 categorizes this vulnerability as high severity, highlighting the need for immediate remediation. The attack vector is network-based, with low complexity and no privileges required for exploitation.
Affected products include GNU Binutils version 2.36 and the NetApp ONTAP Select Deploy Administration Utility. The vulnerability was published on June 2, 2021.
Technical Analysis
The root cause of this vulnerability is the improper handling of crafted symbols within the demangle_path() function. This oversight can lead to excessive stack memory consumption, ultimately causing a crash.
The attack vector is network-based, meaning that an attacker could exploit this vulnerability remotely without requiring physical access to the system. The attack complexity is low, and no user interaction is required for exploitation.
In terms of impact, the availability of the affected system is compromised, with no confidentiality or integrity impacts. Defenders should be particularly vigilant about monitoring systems for signs of exploitation.
Risk & Impact Analysis
Risk to organizations includes potential downtime and loss of service availability, which could affect business operations significantly. The blast radius for this vulnerability is considerable, given that many organizations utilize GNU Binutils in their development pipelines.
Organizations should assess their exposure based on the CVSS score and the current state of their systems. Given its high severity, remediation should be prioritized in the patch cycle.
With an EPSS score of 0.00354, this vulnerability falls within a low probability range for exploitation, but the potential impact makes it critical to address.
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: GNU Binutils version 2.36 and NetApp ONTAP Select Deploy Administration Utility. Organizations using these versions should apply the necessary patches.
Mitigation & Remediation
Organizations should prioritize patching to mitigate the risks associated with this vulnerability. The following actions are recommended:
1. Apply the latest updates for GNU Binutils and NetApp ONTAP Select Deploy Administration Utility.
2. Monitor system logs for unusual activity that may indicate an attempted exploit.
3. Implement network controls to restrict access to vulnerable systems until patches are applied.
For further guidance on security assessments, consider leveraging services such as application security assessments to identify similar vulnerabilities.
Detection Guidance
To effectively detect potential exploitation attempts related to this vulnerability, organizations should monitor for the following indicators:
1. Log entries indicating stack memory exhaustion or application crashes.
2. Unusual network traffic patterns directed at systems running the affected software.
3. Behavioral anomalies in application performance that may indicate exploitation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-3530 highlights the importance of robust coding practices in libraries and utilities utilized widely in software development. Security teams should take proactive measures to ensure that all components are regularly reviewed and updated.
This vulnerability serves as a reminder of the potential risks associated with open-source libraries, which can often be overlooked. Teams should establish a vulnerability management program to systematically identify and remediate security issues.
Additionally, understanding the trends associated with vulnerabilities like this one can inform future security measures. For more information on related trends, consider reviewing the 2025 vulnerability exposure and severity trends report.
Finally, investing in penetration testing can provide insights into your organization's security posture and help identify vulnerabilities before they can be exploited.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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