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CVE-2022-24736

MEDIUMCVSS 5.5/10EPSS 1.50%

Last modified

CVE-2022-24736 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 1.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.50%

71.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
RedisRedis< 6.2.7—
RedisRedis7.0Rc1
FedoraprojectFedora34—
FedoraprojectFedora35—
FedoraprojectFedora36—
NetappManagement Services For Element SoftwareAll versions—
NetappManagement Services For Netapp HciAll versions—
OracleCommunications Operations Monitor4.3—
OracleCommunications Operations Monitor4.4—
OracleCommunications Operations Monitor5.0—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-24736?
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.
How severe is CVE-2022-24736?
CVE-2022-24736 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.
How do I fix CVE-2022-24736?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-24736?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST