← All CVEs

CVE-2021-32626

high · 7.5

Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with heap corruption and potentially remote code execution. This problem exists in all versions of Redis with Lua scripting support, starting from 2.6. The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. For users unable to update an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.

7.5
CVSS
16.2%
EPSS (exploit prob.)
97th
EPSS percentile
2021-10-04
Published

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

Weaknesses

CWE-122CWE-787

Affected products

VendorProductAffected versions
redisredis>= 2.6, < 5.0.14
redisredis>= 6.0.0, < 6.0.16
redisredis>= 6.2.0, < 6.2.6
fedoraprojectfedora33
fedoraprojectfedora34
fedoraprojectfedora35
netappmanagement_services_for_element_softwareall versions
netappmanagement_services_for_netapp_hciall versions
debiandebian_linux10.0
debiandebian_linux11.0
oraclecommunications_operations_monitor4.3
oraclecommunications_operations_monitor4.4
oraclecommunications_operations_monitor5.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2021-32626