Gentoo update for FreeRDP



Published: 2022-10-31
Risk High
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2021-41159
CVE-2021-41160
CVE-2022-24882
CVE-2022-24883
CVE-2022-39282
CVE-2022-39283
CWE-ID CWE-787
CWE-287
CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Gentoo Linux
Operating systems & Components / Operating system

net-misc/freerdp
Operating systems & Components / Operating system package or component

Vendor Gentoo

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU57585

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41159

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing /gt:rpc connections. A remote server can send specially crafted data to the client, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected packages.
net-misc/freerdp to version: 2.8.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/freerdp: before 2.8.1

External links

http://security.gentoo.org/glsa/202210-24


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 write

EUVDB-ID: #VU57584

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41160

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing connections with GDI or SurfaceCommands. A remote server can send specially crafted data to the client, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected packages.
net-misc/freerdp to version: 2.8.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/freerdp: before 2.8.1

External links

http://security.gentoo.org/glsa/202210-24


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.

3) Improper Authentication

EUVDB-ID: #VU62593

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24882

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error when processing NTLM authentication requests with an empty password. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Mitigation

Update the affected packages.
net-misc/freerdp to version: 2.8.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/freerdp: before 2.8.1

External links

http://security.gentoo.org/glsa/202210-24


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.

4) Improper Authentication

EUVDB-ID: #VU62592

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24883

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error when parsing SAM file during server side authentication, if the server has configured an invalid SAM path. A remote attacker can bypass authentication process and gain unauthorized access to the system.

Mitigation

Update the affected packages.
net-misc/freerdp to version: 2.8.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/freerdp: before 2.8.1

External links

http://security.gentoo.org/glsa/202210-24


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.

5) Information disclosure

EUVDB-ID: #VU68264

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-39282

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to exposure of uninitialized data in FreeRDP client on unix systems using /parallel command line switch. The application can read uninitialized data and send it to the RDP server it is connected to.

Mitigation

Update the affected packages.
net-misc/freerdp to version: 2.8.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/freerdp: before 2.8.1

External links

http://security.gentoo.org/glsa/202210-24


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.

6) Information disclosure

EUVDB-ID: #VU68265

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-39283

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to information disclosure. All FreeRDP based clients when using the /video command line switch can read uninitialized data, decode it as audio/video and display the result.

Mitigation

Update the affected packages.
net-misc/freerdp to version: 2.8.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/freerdp: before 2.8.1

External links

http://security.gentoo.org/glsa/202210-24


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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