high8.7
CVE-2020-36872
BACnet Test Server versions up to and including 1.01 contains a remote denial of service vulnerability in its BACnet/IP BVLC packet handling.
Impact
BACnet Test Server versions up to and including 1.01 contains a remote denial of service vulnerability in its BACnet/IP BVLC packet handling. The server fails to properly validate the BVLC Length field in incoming UDP BVLC frames on the default BACnet port (47808/udp). A remote unauthenticated attacker can send a malformed BVLC Length value to trigger an access violation and crash the application, resulting in a denial of service.
Affected products
| Product | Affected versions |
|---|---|
| BACnet Test Server | through 1.01 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://cxsecurity.com/issue/WLB-2020100045
- https://packetstormsecurity.com/files/159504
- https://www.bac-test.com/
- https://www.exploit-db.com/exploits/48860
- https://www.vulncheck.com/advisories/bacnet-test-server-malformed-bvlc-length-dos
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5597.php