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Red Hat: CVE-2021-41159: improper client input validation for gateway connections allows to overwrite memory (Multiple Advisories)

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Red Hat: CVE-2021-41159: improper client input validation for gateway connections allows to overwrite memory (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
11/11/2021
Created
11/13/2021
Added
11/12/2021
Modified
12/15/2023

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP clients prior to version 2.4.1 using gateway connections (`/gt:rpc`) fail to validate input data. A malicious gateway might allow client memory to be written out of bounds. This issue has been resolved in version 2.4.1. If you are unable to update then use `/gt:http` rather than /gt:rdp connections if possible or use a direct connection without a gateway.

Solution(s)

  • redhat-upgrade-freerdp
  • redhat-upgrade-freerdp-debuginfo
  • redhat-upgrade-freerdp-debugsource
  • redhat-upgrade-freerdp-devel
  • redhat-upgrade-freerdp-libs
  • redhat-upgrade-freerdp-libs-debuginfo
  • redhat-upgrade-libwinpr
  • redhat-upgrade-libwinpr-debuginfo
  • redhat-upgrade-libwinpr-devel

References

  • CVE-2021-41159
  • RHSA-2021:4619
  • RHSA-2021:4620
  • RHSA-2021:4621
  • RHSA-2021:4622
  • RHSA-2021:4623

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