Integer-Underflow leading to Out-Of-Bound Read in FreeRDP
CVE-2023-40181

5.3MEDIUM

Key Information:

Vendor

Freerdp

Status
Freerdp
Vendor
CVE Published:
31 August 2023

What is CVE-2023-40181?

The vulnerability in FreeRDP arises from an Integer-Underflow in the zgfx_decompress_segment function, which can lead to an Out-Of-Bound Read situation. This issue allows the possibility of reading memory beyond the normal limits of the processed data packets, potentially causing application crashes. Users are strongly encouraged to upgrade to the fixed versions (2.11.0 and above, or 3.0.0-beta3) as there are no workarounds available to mitigate this risk.

Affected Version(s)

FreeRDP < 2.11.0 < 2.11.0

FreeRDP >= 3.0.0-beta1, < 3.0.0-beta3 < 3.0.0-beta1, 3.0.0-beta3

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/FreeRDP/FreeRDP/blob/2252d53001d9ce8a4...
x_refsource_MISC
https://github.com/FreeRDP/FreeRDP/blob/2252d53001d9ce8a4...
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2023-40181 : Integer-Underflow leading to Out-Of-Bound Read in FreeRDP