Amazon Linux 2 Security Advisory: ALASREDIS6-2023-006
Advisory Release Date: 2023-08-21 21:00 Pacific
Advisory Updated Date: 2023-09-25 22:02 Pacific
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. (CVE-2021-32687)
Affected Packages:
redis
Note:
This advisory is applicable to Amazon Linux 2 - Redis6 Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update redis to update your system.
aarch64:
redis-6.2.5-1.amzn2.0.1.aarch64
redis-devel-6.2.5-1.amzn2.0.1.aarch64
redis-debuginfo-6.2.5-1.amzn2.0.1.aarch64
noarch:
redis-doc-6.2.5-1.amzn2.0.1.noarch
src:
redis-6.2.5-1.amzn2.0.1.src
x86_64:
redis-6.2.5-1.amzn2.0.1.x86_64
redis-devel-6.2.5-1.amzn2.0.1.x86_64
redis-debuginfo-6.2.5-1.amzn2.0.1.x86_64