BACnet-stack MS/TP reply matcher OOB read
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| bacnet-stack | bacnet-stack | affected |
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Bacnetstack | Bacnet Stack | — |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.443% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:bacnetstack:bacnet_stack:1.5.0:rc1:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Bacnetstack
Bacnetstack bacnet Stack |
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| Vendors & Products |
Bacnetstack
Bacnetstack bacnet Stack |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications services. Prior to 1.5.0.rc2, The npdu_is_expected_reply function in src/bacnet/npdu.c indexes request_pdu[offset+2/3/5] and reply_pdu[offset+1/2/4] without verifying that those APDU bytes exist. bacnet_npdu_decode() can return offset == 2 for a 2-byte NPDU, so tiny PDUs pass the version check and then get read out of bounds. On ASan/MPU/strict builds this is an immediate crash (DoS). On unprotected builds it is undefined behavior and can mis-route replies; RCE is unlikely because only reads occur, but DoS is reliable. | |
| Title | BACnet-stack MS/TP reply matcher OOB read | |
| Weaknesses | CWE-125 | |
| References |
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| Metrics |
cvssV3_1
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