In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2025-32366
- 2026-10-03 Alias added: GHSA-9j63-jqr8-fh2v
References
Other 4
- https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n1001
- https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n988
- https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322c93c4340
- https://web.archive.org/web/20250410130356/https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322c93c4340
More ConnMan vulnerabilities
- TI-2025-23798 In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an… CVSS 3.1CRITICAL 9.0
- TI-2012-02059 The loopback plug-in in ConnMan before 0.85 allows remote attackers to execute arbitrary… CVSS 2.0HIGH 10.0
- TI-2012-02058 ConnMan before 0.85 does not ensure that netlink messages originate from the kernel… CVSS 2.0HIGH 7.8
- TI-2026-79981 Stack-based buffer overflow in ConnMan DHCPv6 handling CVSS 3.1HIGH 7.6
- TI-2012-02060 Integer overflow in the dhcpv6_get_option function in gdhcp/client.c in ConnMan before… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2025-32366 · CVE Program
- CVE-2025-32366 · NVD
- FIRST EPSS
- GHSA-9j63-jqr8-fh2v · GitHub Advisory Database · CC BY 4.0
- CVE-2025-32366 · Red Hat security data · CC BY 4.0
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