Stack Buffer Overflow in Binutils PE File Parsing

Executive Summary

CVE-2026-19582 is a stack buffer overflow vulnerability in GNU Binutils versions 2.46.1 and earlier. It occurs when processing a specially crafted Portable Executable (PE) file, leading to an out-of-bounds write in the rsrc_print_name function. This allows arbitrary code execution on the affected system.

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Detection Guidance

To detect this vulnerability, monitor for unusual activity when processing PE files with binutils. Check for crashes or memory corruption errors in binutils tools like objdump or readelf when handling PE files. Use system logs to identify unexpected code execution or memory modifications.

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Impact Analysis

This vulnerability can allow attackers to execute malicious code on your system if you open a crafted PE file. It requires local access or social engineering to exploit, meaning attackers might trick you into opening the file. Successful exploitation could lead to unauthorized system access, data theft, or system crashes.

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Compliance Impact

This vulnerability could lead to unauthorized code execution, memory corruption, or system crashes when processing crafted PE files. For GDPR, it may risk unauthorized data access or processing, violating integrity and confidentiality principles. For HIPAA, it could expose protected health information if exploited on systems handling such data.

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Mitigation Strategies

Avoid opening untrusted or unknown PE files with binutils tools. Update binutils to the latest version if available. Apply patches or mitigations provided by your vendor. Restrict access to binutils tools to trusted users only.

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