SB2025112740 - Multiple vulnerabilities in Suricata

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Main Vulnerability Database SB2025112740

SB2025112740 - Multiple vulnerabilities in Suricata

Published: November 27, 2025

Security Bulletin ID SB2025112740
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 vulnerabilities.


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

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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