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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

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

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

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/

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Configurations

Configuration 1 (hide)

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

Information

Published : 2018-04-20 00:29

Updated : 2019-10-07 14:15

NVD link : CVE-2018-10238

Mitre link : CVE-2018-10238

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

bacnet_protocol_stack_project

bacnet_protocol_stack

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