QID 356486

QID 356486: Amazon Linux Security Advisory for redis : ALAS2REDIS6-2023-006

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)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as High - 6 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2REDIS6-2023-006 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356486

    CVE-2021-32687 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2REDIS6-2023-006 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALASREDIS6-2023-006.html
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