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Advisories

FreeRDP 3.0.0-beta1 before 3.32.0 Stack Buffer Overflow via PKCS#11 Key Name

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severity
medium
date
Affecting

  • FreeRDP >= 3.0.0-beta1, < 3.32.0

CWE
  • CWE-121 Stack-based Buffer Overflow
CVSS
5.1
CVSS V4 Vector
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Kushalkhemka, opensec-intelligence, mayank-jangid-moon, skigeek16
Description
FreeRDP 3.0.0-beta1 before 3.32.0 on Unix builds with PKCS#11 support has a stack-based buffer overflow in wprintKeyName() in WinPR's NCrypt PKCS#11 provider. It hex-encodes a key's CKA_ID, which can be up to 64 bytes, into a fixed 128-byte stack buffer. An attacker supplying a malicious PKCS#11 token or module whose key and matching certificate use a 55- to 64-byte CKA_ID can overflow the client's stack during key enumeration, causing a crash.

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