CVE-2018-19185 Information

Description

An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c. This is exploitable even after CVE-2018-18834 has been patched with a different dataSetValue sequence than the CVE-2018-18834 attack vector.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/fouzhe/security/tree/master/libiec61850another-heap-buffer-overflow-in-function-berencoder_encodeoctetstring https://github.com/mz-automation/libiec61850/issues/87

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8