In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy...
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- 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
Affected Vendor
ConnMan
View all reports →Affected Software
Timeline
CVSS Vectors
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.