CyberRota Analysis
AI-GeneratedA heap-based buffer overflow vulnerability exists in the find_free_number() function of tnef, triggered by specially crafted TNEF files that exploit duplicate filenames when numbered backups are enabled. This flaw can lead to application crashes, resulting in Denial of Service (DoS), and may allow for arbitrary code execution. Organizations utilizing tnef with numbered backups should prioritize addressing this vulnerability to mitigate potential risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
A flaw was found in tnef. A heap-based buffer overflow can occur in the find_free_number() function when generating numbered backup suffixes for duplicate filenames. When numbered backups are enabled and file overwriting is disabled, an attacker can supply a specially crafted Transport Neutral Encapsulation Format (TNEF) file with an excessive number of colliding attachment filenames, causing the numeric counter to write past the allocated memory buffer. This issue may result in an application crash, leading to a Denial of Service (DoS), or potentially arbitrary code execution.
Related CVEs
Other vulnerabilities affecting the same vendor(s)