Integer Overflow or Wraparound Affecting freerdp/freerdp package, versions [,2.1.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.31% (71st percentile)

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  • Snyk IDSNYK-UNMANAGED-FREERDPFREERDP-2319447
  • published14 Dec 2021
  • disclosed29 May 2020
  • creditUnknown

Introduced: 29 May 2020

CVE-2020-11038  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade freerdp/freerdp to version 2.1.0 or higher.

Overview

Affected versions of this package are vulnerable to Integer Overflow or Wraparound. In FreeRDP less than or equal to 2.0.0, an Integer Overflow to Buffer Overflow exists. When using /video redirection, a manipulated server can instruct the client to allocate a buffer with a smaller size than requested due to an integer overflow in size calculation. With later messages, the server can manipulate the client to write data out of bound to the previously allocated buffer. This has been patched in 2.1.0.

References

CVSS Base Scores

version 3.1