Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like SCAN or KEYS) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. The problem is fixed in Redis versions 6.0.18, 6.2.11, 7.0.9.
Weakness
An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Redis | Redis | * | 6.0.18 (excluding) |
| Redis | Redis | 6.2.0 (including) | 6.2.11 (excluding) |
| Redis | Redis | 7.0.0 (including) | 7.0.9 (excluding) |
| Red Hat Enterprise Linux 8 | RedHat | redis:6-8100020250113083959.489197e6 | * |
| Redis | Ubuntu | bionic | * |
| Redis | Ubuntu | esm-apps/bionic | * |
| Redis | Ubuntu | esm-apps/focal | * |
| Redis | Ubuntu | esm-apps/jammy | * |
| Redis | Ubuntu | esm-apps/xenial | * |
| Redis | Ubuntu | esm-infra-legacy/trusty | * |
| Redis | Ubuntu | focal | * |
| Redis | Ubuntu | jammy | * |
| Redis | Ubuntu | kinetic | * |
| Redis | Ubuntu | lunar | * |
| Redis | Ubuntu | trusty | * |
| Redis | Ubuntu | trusty/esm | * |
| Redis | Ubuntu | upstream | * |
| Redis | Ubuntu | xenial | * |