ROS-2-452

2.452 Multiple Vulnerabilities in LibTIFF

1. Vulnerability description:

CVE-2020-35524 CVE-2020-35523 CVE-2020-35522 CVE-2020-35522 CVE-2020-35521 The vulnerability allows a remote attacker to execute arbitrary code on the target system. The vulnerability exists due to a boundary error in TIFF image processing.Identifier of the Information Security Threats Data Bank of the FSTEC of Russia: BDU:2021-01529, BDU:2021-01527, BDU:2021-01526, BDU:2021-01525

2. Possible measures to address the vulnerability

User should refrain from opening tiff or - install security updates for the package (with dependencies if necessary): Libtiff **Installing updates is possible 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 update-After the list of updated packages is displayed, agree to apply updates by pressing the Y key on the keyboard. Wait until the update installation is complete and make sure that there are no errors during its 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 (with dependencies if necessary): http://repo.red-soft.ru/redos/7.2c/x86_64/updates/libtiff-4.1.0-4.el7.x86_64.rpm Check the integrity and authenticity of the package according to instructionsInstall the downloaded package(s) with the command:# yum localinstall *.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 the installation.

Date of last modification: 08.09.2021