Rapid7 Vulnerability & Exploit Database

Gentoo Linux: CVE-2021-41099: Redis: Multiple Vulnerabilities

Back to Search

Gentoo Linux: CVE-2021-41099: Redis: Multiple Vulnerabilities

Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
10/04/2021
Created
09/30/2022
Added
09/30/2022
Modified
09/30/2022

Description

Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the underlying string library can be used to corrupt the heap and potentially result with denial of service or remote code execution. The vulnerability involves changing the default proto-max-bulk-len configuration parameter to a very large value and constructing specially crafted network payloads or commands. The problem is fixed in Redis versions 6.2.6, 6.0.16 and 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the proto-max-bulk-len configuration parameter. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.

Solution(s)

  • gentoo-linux-upgrade-dev-db-redis

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;