SB2025112740 - Multiple vulnerabilities in Suricata

Main Vulnerability Database SB2025112740

SB2025112740 - Multiple vulnerabilities in Suricata

Published: November 27, 2025

Security Bulletin ID SB2025112740

Severity

Medium

Patch available

YES

Number of vulnerabilities 7

Exploitation vector Remote access

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 7 secuirty vulnerabilities.

1) NULL pointer dereference (CVE-ID: CVE-2025-64335)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when the entropy keyword is used in conjunction with base64_data. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

2) Resource exhaustion (CVE-ID: CVE-2025-64334)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when handling compressed HTTP data. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

3) Stack-based buffer overflow (CVE-ID: CVE-2025-64333)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error when handling large HTTP content type. A remote attacker can trigger a stack-based buffer overflow and crash the application.

4) Stack-based buffer overflow (CVE-ID: CVE-2025-64332)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error when handling compressed data if SWF decompression is enabled. A remote attacker can trigger a stack-based buffer overflow and perform a denial of service attack.

5) Stack-based buffer overflow (CVE-ID: CVE-2025-64331)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error on large HTTP file transfers. A remote attacker can trigger a stack-based buffer overflow and perform a denial of service attack.

Successful exploitation of this vulnerability requires that the HTTP response body limit has been increased and that logging of printable HTTP bodies was enabled.

6) Heap-based buffer overflow (CVE-ID: CVE-2025-64330)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error when logging the verdict in eve.alert and eve.drop records. A remote attacker can generate multiple alerts to fill the per packet alert queue and perform a denial of service attack.

7) Stack-based buffer overflow (CVE-ID: CVE-2025-64344)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error when handling Lua scripts. A remote attacker can trick the victim into using a specially crafted Lua script, trigger a stack-based buffer overflow and crash the application.

Remediation

Install update from vendor's website.

References