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3 vulnerabilities found for by ConnMan

CVE-2026-115863 (GCVE-0-2026-115863)
Vulnerability from cvelistv5
Published
2026-10-23 17:35
Modified
2026-10-23 17:35
Severity ?
7.6 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Summary
ConnMan through 2.0 has a stack-based buffer overflow via a DHCPv6 Reply message. This occurs in get_domains in gdhcp/client.c. It copies a fixed NS_MAXDNAME (1025) bytes from a DHCPv6 DOMAIN_LIST (option 24) value into a 1026-byte stack buffer dns_name regardless of the actual option length, then walks DNS labels with an unbounded "c += jump + 1" loop. A crafted DHCPv6 REPLY with a DOMAIN_LIST option of >= 1025 non-zero bytes makes the label walk leave the buffer and read/write '.' past its end in attacker-chosen strides. An on-link attacker can trigger this without authentication via a forged Router Advertisement (O=1) and a forged DHCPv6 REPLY matching xid/CLIENTID with a long DOMAIN_LIST. The impact is unauthenticated on-link crash of connmand (runs as root). This was introduced in bb06c47.
References
Impacted products
Vendor Product Version
ConnMan ConnMan Version: 0   <
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CVE-2025-32743 (GCVE-0-2025-32743)
Vulnerability from cvelistv5
Published
2025-04-10 00:00
Modified
2025-04-10 14:30
Severity ?
9.0 (Critical) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-392 - Missing Report of Error Condition
Summary
In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.
References
Impacted products
Vendor Product Version
ConnMan ConnMan Version: 0   <
Create a notification for this product.
Show details on NVD website

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CVE-2025-32366 (GCVE-0-2025-32366)
Vulnerability from cvelistv5
Published
2025-04-05 00:00
Modified
2025-04-15 15:15
Severity ?
4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
CWE
  • CWE-130 - Improper Handling of Length Parameter Inconsistency
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.
References
Impacted products
Vendor Product Version
ConnMan ConnMan Version: 0   <
Create a notification for this product.
Show details on NVD website

To clipboard 

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