Vulnerability Description
In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., *rdlen=ntohs(rr->rdlen) and memcpy(response+offset,*end,*rdlen) without a check for whether the sum of *end and *rdlen exceeds max. Consequently, *rdlen may be larger than the amount of remaining packet data in the current state of parsing. Values of stack memory locations may be sent over the network in a response.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688
- https://web.archive.org/web/20250410130356/https://lapis-sawfish-be3.notion.site
- https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy
- https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy
FAQ
What is CVE-2025-32366?
CVE-2025-32366 is a vulnerability with a CVSS score of 4.8 (MEDIUM). In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., *rdlen=ntohs(rr->rdlen) and memcpy(response+offset,*end,*rdlen) without a check for whet...
How severe is CVE-2025-32366?
CVE-2025-32366 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-32366?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.