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TI-2022-08550 Aliases CVE-2022-24736

A Malformed Lua script can crash Redis

Priority MEDIUM 58CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 2 fixed, 8 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

Redis is an in-memory database that persists on disk. Prior to versions 6.2.7 and 7.0.0, an attacker attempting to load a specially crafted Lua script can cause NULL pointer dereference which will result with a crash of the redis-server process. The problem is fixed in Redis versions 7.0.0 and 6.2.7. An additional workaround to mitigate this problem without patching the redis-server executable, if Lua scripting is not being used, is to block access to `SCRIPT LOAD` and `EVAL` commands using ACL rules.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01498 74th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial redis (redis): 6.2.7, 7.0.0Red Hat: 2 advisoriesRed Hat: 2 fixed, 8 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Redisredisbefore 6.2.7; before 7.0.06.2.7, 7.0.0Patch availableCNA
  • redis VendorRedis Affected before 6.2.7; before 7.0.0 Fixed in 6.2.7, 7.0.0 Patch available CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*before 6.2.7VulnerableRedis
cpe:2.3:a:redis:redis:7.0:rc1:*:*:*:*:*:*7.0 rc1VulnerableRedis
cpe:2.3:a:redis:redis:7.0:rc2:*:*:*:*:*:*7.0 rc2VulnerableRedis
cpe:2.3:a:redis:redis:7.0:rc3:*:*:*:*:*:*7.0 rc3VulnerableRedis
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*34VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*36VulnerableFedoraproject
cpe:2.3:a:netapp:management_services_for_element_software:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:management_services_for_netapp_hci:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:*4.3VulnerableOracle
  • cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* Versions before 6.2.7 Vulnerable ·Redis
  • cpe:2.3:a:redis:redis:7.0:rc1:*:*:*:*:*:* Versions 7.0 rc1 Vulnerable ·Redis
  • cpe:2.3:a:redis:redis:7.0:rc2:*:*:*:*:*:* Versions 7.0 rc2 Vulnerable ·Redis
  • cpe:2.3:a:redis:redis:7.0:rc3:*:*:*:*:*:* Versions 7.0 rc3 Vulnerable ·Redis
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
  • cpe:2.3:a:netapp:management_services_for_element_software:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:management_services_for_netapp_hci:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:* Versions 4.3 Vulnerable ·Oracle
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:*4.4VulnerableOracle
cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*:*:*:*:*5.0VulnerableOracle
  • cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:* Versions 4.4 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Oracle

Remediation

  • Fix · CNA redis (redis) Fixed in 6.2.7, 7.0.0

Red Hat 2 advisories

  • RHSA-2022:8096 Released 2022-11-15 · Red Hat rating Low
    redis security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 9) redis-6.2.7-1.el9, redis-devel-6.2.7-1.el9, redis-doc-6.2.7-1.el9
  • RHSA-2022:7541 Released 2022-11-08 · Red Hat rating Low
    redis:6 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) redis-6.2.7-1.module+el8.7.0+15197+cc495aeb.aarch64::redis:6, redis-6.2.7-1.module+el8.7.0+15197+cc495aeb.ppc64le::redis:6, redis-6.2.7-1.module+el8.7.0+15197+cc495aeb.s390x::redis:6 +7

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    redis — FEDORA-2022-44373f6778

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2022-08549 Lua scripts can be manipulated to overcome ACL rules in RedisPriority HIGH 67
    Show all 2 records → Advisory →
  • Advisory ·

    redis — FEDORA-2022-6ed1ce2838

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2022-08549 Lua scripts can be manipulated to overcome ACL rules in RedisPriority HIGH 67
    Show all 2 records → Advisory →
Show 1 more group
  • Advisory ·

    redis — FEDORA-2022-a0a4c7eb31

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2022-08549 Lua scripts can be manipulated to overcome ACL rules in RedisPriority HIGH 67
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat 3scale API Management Platform 2AffectedNo fix yet
Red Hat Advanced Cluster Management for Kubernetes 2AffectedNo fix yet: Fix deferred
Red Hat Ansible Automation Platform 1.2AffectedNo fix yet
Red Hat Ansible Tower 3AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Fuse 7AffectedNo fix yet: Fix deferred
Red Hat OpenStack Platform 13 (Queens)AffectedNo fix planned: Out of support scope
Red Hat Software CollectionsAffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2022:7541
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:8096

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-24736

References

Exploit 1

Patch 2

Advisory 7

  • TI-2022-00463 Missing authorization in Debian redis KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-31759 Redis Lua Use-After-Free may lead to remote code execution CVSS 3.1CRITICAL 10.0
  • TI-2023-18618 Heap overflow in COMMAND GETKEYS and ACL evaluation in Redis CVSS 3.1HIGH 8.8
  • TI-2024-20813 Lua library commands may lead to stack overflow and RCE in Redis CVSS 3.1HIGH 8.8
  • TI-2022-08647 Heap overflow issue with the Lua cjson library used by Redis CVSS 3.1HIGH 8.8
  • TI-2022-08549 Lua scripts can be manipulated to overcome ACL rules in Redis CVSS 3.1HIGH 7.8
See all 45 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences