dhcpcd 10.3.0 NULL dereference in option parsing (CVE-2025-70102)
parse_option() in src/if-options.c follows a NULL dhcp_opt pointer while handling crafted configuration input.
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CVE-2025-70102
- CVSS 3.1
- 6.3 medium
- EPSS
- <1%p6
- Published
- ·
- Modified
Description · NVD
A NULL pointer dereference occurs in Roy Marples NetworkConfiguration/dhcpcd 10.3.0 while parsing configuration options. In parse_option() (src/if-options.c:1886), the code performs a member access on a NULL pointer of type 'struct dhcp_opt' when an unexpected/invalid option token or parsing state causes the lookup to yield NULL. The instrumented fuzzing build reports 'runtime error: member access within null pointer of type struct dhcp_opt' and aborts.
- Weakness
- CWE-476
- Vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L