CVE-2022-36021
Published: 1 March 2023
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
redis Launchpad, Ubuntu, Debian |
bionic |
Released
(5:4.0.9-1ubuntu0.2+esm4)
Available with Ubuntu Pro |
| focal |
Released
(5:5.0.7-2ubuntu0.1+esm2)
Available with Ubuntu Pro |
|
| jammy |
Released
(5:6.0.16-1ubuntu1+esm1)
Available with Ubuntu Pro |
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Ignored
(end of life, was needs-triage)
|
|
| mantic |
Needs triage
|
|
| trusty |
Released
(2:2.8.4-2ubuntu0.2+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(6.0.18, 6.2.11, 7.0.9)
|
|
| xenial |
Released
(2:3.0.6-1ubuntu0.4+esm2)
Available with Ubuntu Pro |
|
|
Patches: upstream: https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |