Suricata up to 7.0.2 Traffic use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Suricata up to 7.0.2 and classified as critical. Affected by this issue is some unknown functionality of the component Traffic Handler. This manipulation causes use after free. This vulnerability is handled as CVE-2024-23839. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Suricata up to 7.0.2. It has been declared as critical. Affected by this vulnerability is an unknown part of the component Traffic Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.3, specially crafted traffic can cause a heap use after free if the ruleset uses the http.request_header keyword. The vulnerability has been patched in 7.0.3. To work around the vulnerability, avoid the http.request_header keyword.

The weakness was released 02/26/2024. The advisory is shared at github.com. This vulnerability is known as CVE-2024-23839 since 01/22/2024. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 253201 (Linux Distros Unpatched Vulnerability : CVE-2024-23839), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.0.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (253201). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 7.1
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 253201
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2024-23839

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Suricata 7.0.3
Patch: github.com

Timelineinfo

01/22/2024 🔍
02/26/2024 +35 days 🔍
02/26/2024 +0 days 🔍
08/24/2025 +545 days 🔍

Sourcesinfo

Advisory: cd731fcaf42e5f7078c9be643bfa0cee2ad53e8f
Status: Confirmed

CVE: CVE-2024-23839 (🔍)
GCVE (CVE): GCVE-0-2024-23839
GCVE (VulDB): GCVE-100-254761

Entryinfo

Created: 02/26/2024 16:59
Updated: 08/24/2025 23:24
Changes: 02/26/2024 16:59 (47), 03/14/2024 09:09 (2), 03/14/2024 09:13 (2), 12/19/2024 21:54 (27), 08/24/2025 23:24 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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