CVE-2021-32672: Debian Linux

Medium severity, CVSS 4.3. EPSS: 1.8% chance of exploitation in the next 30 days.

Redis is an open source, in-memory database that persists on disk. When using the Redis Lua Debugger, users can send malformed requests that cause the debugger’s protocol parser to read data beyond the actual buffer. This issue affects all versions of Redis with Lua debugging support (3.2 or newer). The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 33 only; version 34 only; version 35 only
• Netapp Management Services For Element Software: affected versions not specified
• Netapp Management Services For Netapp Hci: affected versions not specified
• Oracle Communications Operations Monitor: version 4.3 only; version 4.4 only; version 5.0 only
• Red Hat Enterprise Linux: version 8.0 only
• Red Hat Software Collections: affected versions not specified
• Redis Redis: from 3.2.0, before 5.0.14 (fixed in 5.0.14); from 6.0.0, before 6.0.16 (fixed in 6.0.16); from 6.2.0, before 6.2.6 (fixed in 6.2.6)

Published 2021-10-04. Last modified 2026-06-17.