A vulnerability was found in Cesanta Mongoose up to 7.20. This impacts the function handle_mdns_record of the file mongoose.c of the component mDNS Record Handler. Performing a manipulation of the argument buf results in stack-based buffer overflow.
Remote exploitation of the attack is possible. A high degree of complexity is needed for the attack. The exploitability is said to be difficult.
The exploit has been made public and could be used. Upgrading to version 7.21 will fix this issue. The patch is named 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1.
You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/cesanta/mongoose/
cna@vuldb.com
https://github.com/cesanta/mongoose/commit/0d882f1b43ff2308b7486a56a9d60cd6dba8…
cna@vuldb.com
https://github.com/cesanta/mongoose/releases/tag/7.21
cna@vuldb.com
https://vuldb.com/submit/770103
cna@vuldb.com
https://vuldb.com/vuln/354826
cna@vuldb.com
https://vuldb.com/vuln/354826/cti
cna@vuldb.com