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Advisories

FreeRDP before 3.32.2 Denial of Service via RemoteFX RLGR decoder

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Severity
high
Date
Affecting

  • FreeRDP >= 3.11.0, < 3.32.2

CWE
  • CWE-617 Reachable Assertion
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
opensec-intelligence, Kushalkhemka, mayank-jangid-moon
Description
FreeRDP from 3.11.0 before 3.32.2 contains an assertion failure in the RemoteFX RLGR decoder that allows malicious servers to terminate clients. Attackers controlling an RDP server can send a RemoteFX tileset with RLGR code 32767, triggering a signed narrowing assertion in rfx_rlgr_decode and crashing the client.

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