Advisories

FreeRDP before 3.32.2 Memory Exhaustion via RD Gateway Packet Length

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Severity
medium
Date
Affecting
  • FreeRDP >= 0, < 3.32.2

CWE
  • CWE-770 Allocation of Resources Without Limits or Throttling
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
Kushalkhemka, mayank-jangid-moon, opensec-intelligence
Description
FreeRDP before 3.32.2 contains a memory allocation vulnerability in rdg_receive_packet that allows a malicious RD Gateway to force a 2 GiB client allocation before tunnel authentication. Attackers can send an eight-byte RDG header declaring packet length 0x7FFFFFFF to trigger pre-authentication memory exhaustion and denial of service.

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