simple-dhcp-server up to ec976d2 DHCP Packet dhcp_packet.c free_packet null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in simple-dhcp-server up to ec976d2. Impacted is the function free_packet of the file dhcp_packet.c of the component DHCP Packet Handler. Executing a manipulation can lead to null pointer dereference. This vulnerability is tracked as CVE-2023-50432. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in simple-dhcp-server up to ec976d2. This vulnerability affects the function free_packet of the file dhcp_packet.c of the component DHCP Packet Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

simple-dhcp-server through ec976d2 allows remote attackers to cause a denial of service (daemon crash) by sending a DHCP packet without any option fields, which causes free_packet in dhcp_packet.c to dereference a NULL pointer.

The advisory is shared for download at papers.mathyvanhoef.com. This vulnerability was named CVE-2023-50432 since 12/09/2023. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/09/2023 🔍
04/30/2024 +142 days 🔍
04/30/2024 +0 days 🔍
11/20/2024 +204 days 🔍

Sourcesinfo

Advisory: papers.mathyvanhoef.com
Status: Not defined

CVE: CVE-2023-50432 (🔍)
GCVE (CVE): GCVE-0-2023-50432
GCVE (VulDB): GCVE-100-262432

Entryinfo

Created: 04/30/2024 06:42
Updated: 11/20/2024 17:42
Changes: 04/30/2024 06:42 (53), 11/20/2024 17:42 (11)
Complete: 🔍
Cache ID: 216::103

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