An update for freerdp is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of
 Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released
 under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

Security Fix(es):

* freerdp: Incorrect offset calculation leading to DOS (CVE-2023-39350)

* freerdp: Null Pointer Dereference leading DOS in RemoteFX (CVE-2023-39351)

* freerdp: invalid offset validation leading to Out Of Bound Write
 (CVE-2023-39352)

* freerdp: missing offset validation leading to Out-of-Bounds Read in
 gdi_multi_opaque_rect (CVE-2023-39356)

* freerdp: Integer overflow leading to out-of-bound write vulnerability in
 gdi_CreateSurface (CVE-2023-40186)

* freerdp: Out-of-bounds write in clear_decompress_bands_data (CVE-2023-40567)

* freerdp: Out-of-bounds write in the `progressive_decompress` function due to
 incorrect calculations (CVE-2023-40569)

* freerdp: buffer overflow in ncrush_decompress causes crash with crafted input
 (CVE-2023-40589)

* freerdp: missing offset validation leading to Out Of Bound Read
 (CVE-2023-39353)

* freerdp: Out-Of-Bounds Read in nsc_rle_decompress_data (CVE-2023-39354)

* freerdp: integer-Underflow leading to Out-Of-Bound Read in
 zgfx_decompress_segment (CVE-2023-40181)

* freerdp: Out-of-bounds read in general_LumaToYUV444 (CVE-2023-40188)

For more details about the security issue(s), including the impact, a CVSS
 score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise
 Linux 9.4 Release Notes linked from the References section.

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CVE-2023-39350: Integer Underflow (Wrap or Wraparound) (CWE-191)
CVE-2023-39351: NULL Pointer Dereference (CWE-476)
CVE-2023-39352: Out-of-bounds Write (CWE-787)
CVE-2023-39353: Out-of-bounds Read (CWE-125)
CVE-2023-39354: Out-of-bounds Read (CWE-125)
CVE-2023-39356: Out-of-bounds Read (CWE-125)
CVE-2023-40181: Integer Underflow (Wrap or Wraparound) (CWE-191)
CVE-2023-40186: Out-of-bounds Write (CWE-787)
CVE-2023-40188: Out-of-bounds Read (CWE-125)
CVE-2023-40567: Out-of-bounds Write (CWE-787)
CVE-2023-40569: Out-of-bounds Write (CWE-787)
CVE-2023-40589: Buffer Copy without Checking Size of Input ('Classic Buffer
 Overflow') (CWE-120)