libcsp 2.0 csp_eth_init ifname buffer overflow

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

Summaryinfo

A vulnerability was found in libcsp 2.0. It has been declared as critical. The impacted element is the function csp_eth_init. The manipulation of the argument ifname results in buffer overflow. This vulnerability was named CVE-2025-51823. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in libcsp 2.0. Affected is the function csp_eth_init. The manipulation of the argument ifname with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

libcsp 2.0 is vulnerable to Buffer Overflow in the csp_eth_init() function due to improper handling of the ifname parameter. The function uses strcpy to copy the interface name into a structure member (ctx->name) without validating the input length.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-51823 since 06/16/2025. The exploitability is told to be easy. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 259915 (Linux Distros Unpatched Vulnerability : CVE-2025-51823), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (259915). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 259915
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-51823

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: github.com

Timelineinfo

06/16/2025 CVE reserved
08/11/2025 +56 days Advisory disclosed
08/11/2025 +0 days VulDB entry created
08/31/2025 +20 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 850
Status: Confirmed

CVE: CVE-2025-51823 (🔒)
GCVE (CVE): GCVE-0-2025-51823
GCVE (VulDB): GCVE-100-319458

Entryinfo

Created: 08/11/2025 21:52
Updated: 08/31/2025 19:36
Changes: 08/11/2025 21:52 (56), 08/14/2025 20:20 (1), 08/31/2025 19:36 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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