Vulnerability in Connman
CVE-2025-32366
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (33.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Connman — versions 0
Weakness classification (CWE)
References
- web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c
- web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c
- lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322…
- web.archive.org/web/20250410130356/https://lapis-sawfish-be3.notion.site/0-day-…
Frequently asked questions
- What is CVE-2025-32366?
- CVE-2025-32366 is a medium-severity vulnerability in Connman, classified under Improper Handling of Length Parameter Inconsistency. CVSS score: 4.8/10. Published 2025-04-05.
- How severe is CVE-2025-32366?
- Medium severity. CVSS v3 base score is 4.8 out of 10.