CVE-2025-6499

A vulnerability classified as problematic was found in vstakhov libucl up to 0.9.2. Affected by this vulnerability is the function ucl_parse_multiline_string of the file src/ucl_parser.c. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.

CVSS v3 3.3 LOW
CVSS v2.0 1.7 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

1.7^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 3.1 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/user-attachments/files/19825399/libucl_crash.txt
https://github.com/vstakhov/libucl/issues/319
https://vuldb.com/?ctiid.313615
https://vuldb.com/?id.313615
https://vuldb.com/?submit.601011
https://github.com/vstakhov/libucl/issues/319

Configurations

No configuration.

History

23 Jun 2025, 20:16

Type	Values Removed	Values Added
Summary		(es) Se encontró una vulnerabilidad clasificada como problemática en vstakhov libucl hasta la versión 0.9.2. Esta vulnerabilidad afecta a la función ucl_parse_multiline_string del archivo src/ucl_parser.c. La manipulación provoca un desbordamiento del búfer en el montón. El ataque debe abordarse localmente. Se ha hecho público el exploit y puede que sea utilizado.

23 Jun 2025, 14:15

Type	Values Removed	Values Added
References	~~() https://github.com/vstakhov/libucl/issues/319 -~~	() https://github.com/vstakhov/libucl/issues/319 -

23 Jun 2025, 03:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-23 03:15

Updated : 2025-06-23 20:16

NVD link : CVE-2025-6499

Mitre link : CVE-2025-6499

CVE.ORG link : CVE-2025-6499

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-122

Heap-based Buffer Overflow

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