CVE Vulnerability

CVE-2018-10238

bvlc.c in skarg BACnet Protocol Stack bacserv 0.9.1 and 0.8.5 is affected by a Buffer Overflow because of a lack of packet-size validation. The affected component is bacserv BACnet/IP BVLC forwarded NPDU. The function bvlc_bdt_forward_npdu() calls bvlc_encode_forwarded_npdu() which copies the content from the request into a local in the bvlc_bdt_forward_npdu() stack frame and clobbers the canary. The attack vector is: A BACnet/IP device with BBMD enabled based on this library connected to IP network. The fixed version is: 0.8.6.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://sourceforge.net/p/bacnet/code/3168/ Patch Third Party Advisory
https://sourceforge.net/p/bacnet/code/3169/
https://sourceforge.net/p/bacnet/bugs/55/
Configurations

Configuration 1

cpe:2.3:a:bacnet_protocol_stack_project:bacnet_protocol_stack:0.8.5:*:*:*:*:*:*:*
Information

Published : 2018-04-20 07:29

Updated : 2019-10-07 09:15

NVD link : CVE-2018-10238

Mitre link : CVE-2018-10238

Products Affected
No products.
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer