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Advisories

FreeRDP 2.0.0 before 3.32.0 Memory Exhaustion via DRDYNVC DATA_FIRST

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Severity
high
Date
Affecting

  • FreeRDP >= 2.0.0, < 3.32.0

CWE
  • CWE-400 Uncontrolled Resource Consumption
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Kushalkhemka, mayank-jangid-moon, skigeek16, opensec-intelligence
Description
FreeRDP from 2.0.0 before 3.32.0 contains a memory exhaustion vulnerability in wts_read_drdynvc_data_first that allows authenticated clients to force servers to commit large memory allocations. Attackers can send a seven-byte DATA_FIRST message on an opened DVC declaring a large 32-bit length, causing zeroed resident memory growth and server resource exhaustion.

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