CVE-2025-32366 Information disclosure in ConnMan
A remote attacker can trigger a buffer over-read in ConnMan's DNS proxy to leak stack memory contents over the network.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-32366?
CVE-2025-32366 is a medium-severity vulnerability in ConnMan, published on 5 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-130
Which versions are affected by CVE-2025-32366?
How do I fix CVE-2025-32366?
Apply the vendor's patch.
Is CVE-2025-32366 being exploited?
There is no known exploitation of CVE-2025-32366 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-32366, GHSA-9j63-jqr8-fh2v, UBUNTU-CVE-2025-32366.