SB2022112538 - openEuler update for freerdp

Description

This security bulletin contains information about 5 vulnerabilities.

1) Absolute Path Traversal (CVE-ID: CVE-2022-39347)

CWE-ID: CWE-36 - Absolute Path Traversal

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to missing path canonicalization and base path check for drive channel. A malicious server can trick the FreeRDP client to read files outside the shared directory.

2) Out-of-bounds read (CVE-ID: CVE-2022-39316)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in ZGFX decoder. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it.

Successful exploitation of the vulnerability may allows remote code execution.

3) Out-of-bounds read (CVE-ID: CVE-2022-39319)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in urbdrc channel.  A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server.

4) Out-of-bounds read (CVE-ID: CVE-2022-41877)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the drive channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server.

5) Division by zero (CVE-ID: CVE-2022-39318)

CWE-ID: CWE-369 - Divide By Zero

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a division by zero error in urbdrc channel. A malicious server can pass specially crafted data to the application and crash it.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2112