ROS-2-1242

2.1242 Multiple vulnerabilities in Redis (CVE-2021-29477,CVE-2021-29478)

1. Vulnerability Description:

A vulnerability exists due to an integer overflow in the STRALGO LCS command. A remote attacker can pass specially crafted data to an application, cause an integer overflow, and execute arbitrary code on the target system. A vulnerability exists due to an integer overflow in the COPY command for large intset. A remote attacker can pass specially crafted data to an application, cause an integer overflow and execute arbitrary code on the target system.Identifier of the Information Security Threats Data Bank of the FSTEC of Russia:

2. Possible measures to eliminate the vulnerability

Terminate the Redis application or - install security updates for the package (with dependencies if necessary): redis**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 updateAfter the list of updated packages is displayed, agree to apply the 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/redis-6.2.3-1.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