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Advisories

FreeRDP before 3.32.2 Heap Out-of-Bounds Write in Planar Codec

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Severity
high
Date
Affecting

  • FreeRDP >= 0, < 3.32.2

CWE
  • CWE-787 Out-of-bounds Write
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
smaeljaish771, KeenSecurityLab
Description
FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdp_bitmap_planar_context_reset commits new dimensions before buffer reallocation succeeds, and a failed ResetGraphics is only logged. A malicious RDP server can send an oversized ResetGraphics PDU, then a GFX PLANAR command, to corrupt client heap memory and crash the client.

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