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Advisories

FreeRDP 3.0.0 before 3.32.0 Memory Disclosure via SCardTransmit Smartcard Redirection

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severity
medium
date
Affecting

  • FreeRDP >= 3.0.0, < 3.32.0

CWE
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Kushalkhemka, opensec-intelligence, mayank-jangid-moon, skigeek16
Description
FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcard_Transmit_Call that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing smartcard_pack_transmit_return to serialize up to 66,560 uninitialized heap bytes.

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