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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade redisUpgrade redis-docUpgrade redis-devel | May 4, 2022 | Oct 4, 2021 |
| Alpine Linux | — | Upgrade redis | Mar 26, 2024 | Oct 4, 2021 |
| Amazon Linux Ami 2 | — | Upgrade redis-develUpgrade redis-docUpgrade redis-debuginfoUpgrade redis | Sep 28, 2023 | Oct 4, 2021 |
| Centos_linux | — | Upgrade redisUpgrade redis-develUpgrade redis-debuginfoUpgrade redis-docUpgrade redis-debugsource | Oct 20, 2021 | Oct 19, 2021 |
| Debian | — | Upgrade redis | Nov 29, 2021 | Oct 4, 2021 |
| Freebsd | — | Upgrade redis-develUpgrade redisUpgrade redis5Upgrade redis6 | Nov 4, 2022 | Oct 5, 2021 |
| Gentoo Linux | — | Upgrade dev-db/redis. | Sep 30, 2022 | Oct 4, 2021 |
| Oracle_linux | — | Upgrade redis-develUpgrade redisUpgrade redis-doc | Oct 20, 2021 | Oct 4, 2021 |
| Redhat_linux | — | Upgrade redis-debuginfoUpgrade redis-debugsourceUpgrade redis-docUpgrade redisUpgrade redis-devel | Oct 20, 2021 | Oct 19, 2021 |
| Redislabs Redis | — | Upgrade RedisLabs Redis to version 5.0.14Upgrade RedisLabs Redis to version 6.0.16Upgrade RedisLabs Redis to version 6.2.6 | Oct 17, 2025 | Oct 4, 2021 |
| Rocky_linux | — | Upgrade redis-debugsourceUpgrade redis-debuginfoUpgrade redisUpgrade redis-devel | Mar 12, 2024 | Oct 4, 2021 |
| Suse | — | Upgrade redis | Nov 24, 2021 | Oct 4, 2021 |
| Ubuntu | — | Upgrade redis-tools (Ubuntu Pro)Upgrade redis-server (Ubuntu Pro)Upgrade redis (Ubuntu Pro) | Mar 22, 2023 | Oct 4, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Oct 4, 2021 |
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