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Redis CVE-2021-32672

MEDIUM
Out-of-bounds Read (CWE-125)
2021-10-04 security-advisories@github.com
4.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

1
CVE Published
Oct 04, 2021 - 18:15 nvd
MEDIUM 4.3

DescriptionNVD

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.

AnalysisAI

Redis is an open source, in-memory database that persists on disk. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. 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.2 or newer). The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. Affected products include: Redis, Redhat Software Collections, Redhat Enterprise Linux, Debian Debian Linux, Fedoraproject Fedora.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.

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CVE-2021-32672 vulnerability details – vuln.today

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