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redosRedosROS-2-1171
HistorySep 08, 2021 - 12:00 a.m.

ROS-2-1171

2021-09-0800:00:00
redos.red-soft.ru
2
freerdp
vulnerability
buffer overflow
integer overflow
security updates
remote desktop protocol
fstec russia

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.9

Confidence

Low

2.1171 Vulnerability in FreeRDP

1. Vulnerability description:

Eight vulnerabilities have been resolved. Five issues can cause a crash or data leak due to reads from areas outside the allocated buffer. One issue results in an integer overflow. Three issues can lead to buffer overflows in the cliprdr_server_receive_capabilities and URBDRC handlers. FSTEC Russia’s Information Security Threat Data Bank Identifier: BDU:2020-02593, BDU:2020-02592, BDU:2020-02591, BDU:2020-02590, BDU:2020-02589, BDU:2020-02588, BDU:2020-02587, BDU:2020-02586

2. Possible remedial actions to address the vulnerability

- refuse to use RDP (Remote Desktop Protocol) or - install security updates for package: freerdp-2.1.0Updates can be installed in the following ways:**a) if the computer with the installed OS version has access to the vendor’s official repository, run the update as administrator with the command:# yum updateAfter the list of updated packages is displayed, agree to apply the updates by pressingY**on the keyboard. Wait until the updates installation is completed and make sure that there are no errors during their installation.b)If the computer with the installed OS version does not have access to the vendor’s official repository, you should perform the following actions: - download the updated package (and dependencies if necessary): http://repo.red-soft.ru/redos/7.2c/x86_64/updates/freerdp-2.1.0-2.el7.x86_64.rpm Check the package integrity and authenticity by instructionsInstall the downloaded package with the command:# yum localinstall freerdp-2.1.0-2.el7.x86_64.rpmWhen the list of updated packages is displayed, agree to apply the updates by pressingY on the keyboard. Wait for the updates to finish installing and make sure there are no errors during installation.

Date of last modification: 08.09.2021

OSVersionArchitecturePackageVersionFilename
redosunknown< UNKNOWN

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.9

Confidence

Low