CVE-2005-0468
HighSummary
Heap-based buffer overflow in the env_opt_add function in telnet.c in BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses containing a large number of characters requiring escaping, consuming more memory than allocated.
Risk Assessment
The risk for the organization is the possibility of remote code execution without authentication, potentially leading to compromise of data confidentiality, integrity, and availability.
Recommendation
It is recommended to immediately update Telnet clients to a patched version or apply the security fix provided by the operating system vendor.
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Original NVD description (English source)
Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS