Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI 2: CVE-2021-32687: Security patch for redis (ALASREDIS6-2023-006)

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Amazon Linux AMI 2: CVE-2021-32687: Security patch for redis (ALASREDIS6-2023-006)

Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
10/04/2021
Created
09/28/2023
Added
09/28/2023
Modified
09/28/2023

Description

Redis is an open source, in-memory database that persists on disk. An integer overflow bug affecting all versions of Redis can be exploited to corrupt the heap and potentially be used to leak arbitrary contents of the heap or trigger remote code execution. The vulnerability involves changing the default set-max-intset-entries configuration parameter to a very large value and constructing specially crafted commands to manipulate sets. 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 set-max-intset-entries configuration parameter. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.

Solution(s)

  • amazon-linux-ami-2-upgrade-redis
  • amazon-linux-ami-2-upgrade-redis-debuginfo
  • amazon-linux-ami-2-upgrade-redis-devel
  • amazon-linux-ami-2-upgrade-redis-doc

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

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

;