CVE-2024-32664 - CVE House
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Status published Medium CVE-2024-32664

Suricata's base64 contains an out of bounds write

Vulnerability Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, specially crafted traffic or datasets can cause a limited buffer overflow. This vulnerability is fixed in 7.0.5 and 6.0.19. Workarounds include not use rules with `base64_decode` keyword with `bytes` option with value 1, 2 or 5 and for 7.0.x, setting `app-layer.protocols.smtp.mime.body-md5` to false.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2025-64344
Suricata is vulnerable to a stack overflow from unbounded stack allocation in LuaPushStringBuffer
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CVE-2025-64335
Suricata is vulnerable to a null deref when used with base64_data
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CVE-2025-64334
Suricata is vulnerable to unbounded memory growth for decompression
High 7.5
CVE-2025-64333
Suricata is vulnerable to a stack overflow from big content-type
High 7.5
CVE-2025-64332
Suricata is vulnerable to a stack overflow on larger compressed data
High 7.5

Affected Vendor

Affected Software

suricata
Vulnerable Versions:
>= 6.0.0, <= 6.0.18, >= 7.0.0, <= 7.0.4

Timeline

Official Publish: May 7th, 2024
Last Modified: August 2nd, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

CWE-122 CWE-120

MITRE ATT&CK TTPs

T1203 Exploitation for Client Execution
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control