CVE-2025-70102

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Se produce una desreferencia de puntero NULL en Roy Marples NetworkConfiguration/dhcpcd 10.3.0 al analizar opciones de configuraci\u00f3n. En parse_option() (src/if-options.c:1886), el c\u00f3digo realiza un acceso a miembro en un puntero NULL de tipo 'struct dhcp_opt' cuando un token de opci\u00f3n inesperado/inv\u00e1lido o un estado de an\u00e1lisis provoca que la b\u00fasqueda devuelva NULL. La compilaci\u00f3n de fuzzing instrumentado informa 'runtime error: member access within null pointer of type struct dhcp_opt' y aborta."}], "id": "CVE-2025-70102", "lastModified": "2026-10-30T16:17:34.373", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-70102", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-16T14:47:28.342031Z", "version": "2.0.3"}}]}, "published": "2026-06-15T20:16:24.827", "references": [{"source": "cve@mitre.org", "url": "https://infosec.exchange/@sigdevel/116733594508542047"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/10/30/8"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "dhcpcd: dhcpcd: Denial of Service via NULL pointer dereference during configuration option parsing", "id": "2488997", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488997"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["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.", "A flaw was found in dhcpcd. A specially crafted configuration input may cause the parse_option() function to dereference a NULL pointer while processing malformed option data. This issue may result in application termination and a denial of service condition."], "mitigation": {"lang": "en:us", "value": "Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security's standards for usability, deployment, applicability, or stability."}, "name": "CVE-2025-70102", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "dhcpcd", "product_name": "Red Hat Enterprise Linux 10"}], "public_date": "2026-06-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-70102\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-70102\nhttps://infosec.exchange/@sigdevel/116733594508542047"], "statement": "This vulnerability affects dhcpcd's configuration parsing functionality. Red Hat Product Security has assessed this issue as a Moderate severity vulnerability.\nThe flaw occurs in the parse_option() function when processing malformed configuration option data. Under certain conditions, an internal DHCP option structure may remain NULL while the code incorrectly assumes it has been initialized and subsequently dereferences it.\nPrivileges Required (PR:H): Exploitation requires the ability to supply or modify configuration data processed by dhcpcd. In typical deployments, modification of dhcpcd configuration files requires administrative privileges.\nSuccessful exploitation may cause dhcpcd to terminate unexpectedly, resulting in a denial of service condition.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "10.3.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "dhcpcd", "vendor": "dhcpcd_project"}], "created": "2026-06-17T01:15:16.188221+00:00", "updated": "2026-06-26T09:46:36.580661+00:00", "vendors": ["dhcpcd_project", "dhcpcd_project$PRODUCT$dhcpcd"]}