CVE-2022-41877

FreeRDP is a client implementation of the Remote Desktop Protocol (RDP) that follows Microsoft's open specifications. This package provides the client applications xfreerdp and wlfreerdp.

Security Fix(es):

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing path canonicalization and base path check for drive channel. A malicious server can trick a FreeRDP based client to read files outside the shared directory. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the /drive, /drives or +home-drive redirection switch.(CVE-2022-39347)

FreeRDP is a free remote desktop protocol library and clients. In affected versions there is an out of bound read in ZGFX decoder component of FreeRDP. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it likely resulting in a crash. This issue has been addressed in the 2.9.0 release. Users are advised to upgrade.(CVE-2022-39316)

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input length validation in the urbdrc channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the /usb redirection switch.(CVE-2022-39319)

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input length validation in drive channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the drive redirection channel - command line options /drive, +drives or +home-drive.(CVE-2022-41877)

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input validation in urbdrc channel. A malicious server can trick a FreeRDP based client to crash with division by zero. This issue has been addressed in version 2.9.0. All users are advised to upgrade. Users unable to upgrade should not use the /usb redirection switch.(CVE-2022-39318)

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: clients using /parallel command line switch might read uninitialized data (CVE-2022-39282)

• freerdp: clients using the /video command line switch might read uninitialized data (CVE-2022-39283)

• freerdp: out of bounds read in zgfx decoder (CVE-2022-39316)

• freerdp: undefined behaviour in zgfx decoder (CVE-2022-39317)

• freerdp: division by zero in urbdrc channel (CVE-2022-39318)

• freerdp: missing length validation in urbdrc channel (CVE-2022-39319)

• freerdp: heap buffer overflow in urbdrc channel (CVE-2022-39320)

• freerdp: missing path sanitation with drive channel (CVE-2022-39347)

• freerdp: missing input length validation in drive channel (CVE-2022-41877)

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 Rocky Linux 8.8 Release Notes linked from the References section.

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input length validation in drive channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the drive redirection channel - command line options /drive, +drives or +home-drive.

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: clients using /parallel command line switch might read uninitialized data (CVE-2022-39282)
• freerdp: clients using the /video command line switch might read uninitialized data (CVE-2022-39283)
• freerdp: out of bounds read in zgfx decoder (CVE-2022-39316)
• freerdp: undefined behaviour in zgfx decoder (CVE-2022-39317)
• freerdp: division by zero in urbdrc channel (CVE-2022-39318)
• freerdp: missing length validation in urbdrc channel (CVE-2022-39319)
• freerdp: heap buffer overflow in urbdrc channel (CVE-2022-39320)
• freerdp: missing path sanitation with drive channel (CVE-2022-39347)
• freerdp: missing input length validation in drive channel (CVE-2022-41877)

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 AlmaLinux Release Notes linked from 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: clients using /parallel command line switch might read uninitialized data (CVE-2022-39282)
• freerdp: clients using the /video command line switch might read uninitialized data (CVE-2022-39283)
• freerdp: out of bounds read in zgfx decoder (CVE-2022-39316)
• freerdp: undefined behaviour in zgfx decoder (CVE-2022-39317)
• freerdp: division by zero in urbdrc channel (CVE-2022-39318)
• freerdp: missing length validation in urbdrc channel (CVE-2022-39319)
• freerdp: heap buffer overflow in urbdrc channel (CVE-2022-39320)
• freerdp: missing path sanitation with drive channel (CVE-2022-39347)
• freerdp: missing input length validation in drive channel (CVE-2022-41877)

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 AlmaLinux Release Notes linked from the References section.

Affected versions of FreeRDP are missing input length validation in 'drive' channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. (CVE-2022-41877)

This update for freerdp fixes the following issues:

• CVE-2022-39316: Fixed out of bound read in zgfx decoder (bsc#1205512).
• CVE-2022-39317: Fixed undefined behaviour in zgfx decoder (bsc#1205512).
• CVE-2022-39320: Fixed heap buffer overflow in urbdrc channel (bsc#1205512).
• CVE-2022-39347: Fixed missing path sanitation with drive channel (bsc#1205512).
• CVE-2022-41877: Fixed missing input length validation in drive channel (bsc#1205512).

This update for freerdp fixes the following issues:

• CVE-2022-39316: Fixed out of bound read in zgfx decoder (bsc#1205512).
• CVE-2022-39317: Fixed undefined behaviour in zgfx decoder (bsc#1205512).
• CVE-2022-39320: Fixed heap buffer overflow in urbdrc channel (bsc#1205512).
• CVE-2022-39347: Fixed missing path sanitation with drive channel (bsc#1205512).
• CVE-2022-41877: Fixed missing input length validation in drive channel (bsc#1205512).

It was discovered that FreeRDP incorrectly handled drive redirection. If a user were tricked into connection to a malicious server, a remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2022-41877)

It was discovered that FreeRDP incorrectly handled certain surface updates. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-39352, CVE-2023-39356)

USN-6522-1 fixed several vulnerabilities in FreeRDP. This update provides the corresponding update for Ubuntu 18.04 LTS. Original advisory details:

It was discovered that FreeRDP incorrectly handled drive redirection. If a user were tricked into connection to a malicious server, a remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2022-41877)

It was discovered that FreeRDP incorrectly handled certain surface updates. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-39352, CVE-2023-39356)