CVE-2025-32366

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.

References

https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n988

https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n1001

https://web.archive.org/web/20250410130356/https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322c93c4340

https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322c93c4340

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS