CVE-2022-36021

redis: Redis is an in-memory database that persists on disk

CVE-2022-36021 is fixed in 11 products on 1 platform, first by DEBIAN-CVE-2022-36021, released March 1, 2023. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.0
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.5977
99th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
redis · Debian 12.15 (bookworm) 5:7.0.9-1 DEBIAN-CVE-2022-36021 Mar 1, 2023
redis · Debian 13.5 (trixie) 5:7.0.9-1 DEBIAN-CVE-2022-36021 Mar 1, 2023
redis · Debian 14 5:7.0.9-1 DEBIAN-CVE-2022-36021 Mar 1, 2023
redis · RHEL 8 0:6.2.17-1.module+el8.10.0+22680+748527fd RHSA-2025:0595 Jan 22, 2025
redis · Ubuntu 18.04.6 LTS (bionic) 5:4.0.9-1ubuntu0.2+esm4 redis 5:4.0.9-1ubuntu0.2+esm4 Oct 18, 2023
redis · Ubuntu 20.04 LTS (focal) 5:5.0.7-2ubuntu0.1+esm2 redis 5:5.0.7-2ubuntu0.1+esm2 Oct 18, 2023
redis · Ubuntu 22.04.1 LTS (jammy) 5:6.0.16-1ubuntu1+esm1 redis 5:6.0.16-1ubuntu1+esm1 Oct 18, 2023
redis · almalinux 8 6.2.17-1.module_el8.10.0+3946+3de613d5 ALSA-2025:0595 Jan 22, 2025
redis · ol 8 0:6.2.17-1.0.1.module+el8.10.0+90491+f9002f77 ELSA-2025-0595 Jan 23, 2025
redis · rocky 8 0:6.2.17-1.module+el8.10.0+1923+5b85c6a7 RLSA-2025:0595 Feb 13, 2025
redis-devel · RHEL 8 0:6.2.17-1.module+el8.10.0+22680+748527fd RHSA-2025:0595 Jan 22, 2025
redis-devel · almalinux 8 6.2.17-1.module_el8.10.0+3946+3de613d5 ALSA-2025:0595 Jan 22, 2025
redis-devel · ol 8 0:6.2.17-1.0.1.module+el8.10.0+90491+f9002f77 ELSA-2025-0595 Jan 23, 2025
redis-doc · RHEL 8 0:6.2.17-1.module+el8.10.0+22680+748527fd RHSA-2025:0595 Jan 22, 2025
redis-doc · almalinux 8 6.2.17-1.module_el8.10.0+3946+3de613d5 ALSA-2025:0595 Jan 22, 2025
redis-doc · ol 8 0:6.2.17-1.0.1.module+el8.10.0+90491+f9002f77 ELSA-2025-0595 Jan 23, 2025
redis-sentinel · Ubuntu 18.04.6 LTS (bionic) 5:4.0.9-1ubuntu0.2+esm4 redis-sentinel 5:4.0.9-1ubuntu0.2+esm4 Oct 18, 2023
redis-sentinel · Ubuntu 20.04 LTS (focal) 5:5.0.7-2ubuntu0.1+esm2 redis-sentinel 5:5.0.7-2ubuntu0.1+esm2 Oct 18, 2023
redis-sentinel · Ubuntu 22.04.1 LTS (jammy) 5:6.0.16-1ubuntu1+esm1 redis-sentinel 5:6.0.16-1ubuntu1+esm1 Oct 18, 2023
redis-server · Ubuntu 18.04.6 LTS (bionic) 5:4.0.9-1ubuntu0.2+esm4 redis-server 5:4.0.9-1ubuntu0.2+esm4 Oct 18, 2023
redis-server · Ubuntu 20.04 LTS (focal) 5:5.0.7-2ubuntu0.1+esm2 redis-server 5:5.0.7-2ubuntu0.1+esm2 Oct 18, 2023
redis-server · Ubuntu 22.04.1 LTS (jammy) 5:6.0.16-1ubuntu1+esm1 redis-server 5:6.0.16-1ubuntu1+esm1 Oct 18, 2023
redis-tools · Ubuntu 18.04.6 LTS (bionic) 5:4.0.9-1ubuntu0.2+esm4 redis-tools 5:4.0.9-1ubuntu0.2+esm4 Oct 18, 2023
redis-tools · Ubuntu 20.04 LTS (focal) 5:5.0.7-2ubuntu0.1+esm2 redis-tools 5:5.0.7-2ubuntu0.1+esm2 Oct 18, 2023
redis-tools · Ubuntu 22.04.1 LTS (jammy) 5:6.0.16-1ubuntu1+esm1 redis-tools 5:6.0.16-1ubuntu1+esm1 Oct 18, 2023
redis6 · amzn 2023 6.2.11-1.amzn2023.0.1 ALAS2023-2023-154 Mar 30, 2023
redis6-debuginfo · amzn 2023 6.2.11-1.amzn2023.0.1 ALAS2023-2023-154 Mar 30, 2023
redis6-debugsource · amzn 2023 6.2.11-1.amzn2023.0.1 ALAS2023-2023-154 Mar 30, 2023
redis6-devel · amzn 2023 6.2.11-1.amzn2023.0.1 ALAS2023-2023-154 Mar 30, 2023
redis6-doc · amzn 2023 6.2.11-1.amzn2023.0.1 ALAS2023-2023-154 Mar 30, 2023

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