openEuler update for freerdp



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-39317
CVE-2022-39320
CWE-ID CWE-129
CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 openEuler
Operating systems & Components / Operating system

freerdp-debugsource
Operating systems & Components / Operating system package or component

freerdp-help
Operating systems & Components / Operating system package or component

libwinpr-devel
Operating systems & Components / Operating system package or component

freerdp-devel
Operating systems & Components / Operating system package or component

freerdp-debuginfo
Operating systems & Components / Operating system package or component

libwinpr
Operating systems & Components / Operating system package or component

freerdp
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Validation of Array Index

EUVDB-ID: #VU69592

Risk: Medium

CVSSv4.0: 4.8 [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]

CVE-ID: CVE-2022-39317

CWE-ID: CWE-129 - Improper Validation of Array Index

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a missing range check for input offset index 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.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

freerdp-debugsource: before 2.8.1-3

freerdp-help: before 2.8.1-3

libwinpr-devel: before 2.8.1-3

freerdp-devel: before 2.8.1-3

freerdp-debuginfo: before 2.8.1-3

libwinpr: before 2.8.1-3

freerdp: before 2.8.1-3

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2120


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds read

EUVDB-ID: #VU69589

Risk: Low

CVSSv4.0: 0.5 [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]

CVE-ID: CVE-2022-39320

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

Exploit availability: No

Description

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

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

freerdp-debugsource: before 2.8.1-3

freerdp-help: before 2.8.1-3

libwinpr-devel: before 2.8.1-3

freerdp-devel: before 2.8.1-3

freerdp-debuginfo: before 2.8.1-3

libwinpr: before 2.8.1-3

freerdp: before 2.8.1-3

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2120


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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