libyang up to 2.1.30 lys_parse_mem.c lysp_stmt_validate_value null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in libyang up to 2.1.30. It has been declared as problematic. This issue affects the function lysp_stmt_validate_value of the file lys_parse_mem.c. The manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2023-26917. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in libyang up to 2.1.30. Affected is the function lysp_stmt_validate_value of the file lys_parse_mem.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

libyang from v2.0.164 to v2.1.30 was discovered to contain a NULL pointer dereference via the function lysp_stmt_validate_value at lys_parse_mem.c.

The weakness was shared 04/11/2023 as 1987. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-26917 since 02/27/2023. 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-30709). 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: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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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

02/27/2023 🔍
04/11/2023 +42 days 🔍
04/11/2023 +0 days 🔍
11/12/2025 +946 days 🔍

Sourcesinfo

Advisory: 1987
Status: Confirmed

CVE: CVE-2023-26917 (🔍)
GCVE (CVE): GCVE-0-2023-26917
GCVE (VulDB): GCVE-100-225504
EUVD: 🔍

Entryinfo

Created: 04/11/2023 15:12
Updated: 11/12/2025 09:18
Changes: 04/11/2023 15:12 (39), 04/28/2023 07:28 (11), 11/12/2025 09:18 (16)
Complete: 🔍
Cache ID: 216::103

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

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