RCE in Stunnel

CVE-2013-1762

stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.029 (85.7th percentile) — read the EPSS interpretation.

Affected products

  • Stunnel — versions 4.21, 4.22, 4.23
  • N/a — versions n/a

Weakness classification (CWE)

References