184 lines
9.0 KiB
JSON
184 lines
9.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-66646",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2025-12-05T20:23:19.595Z",
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"datePublished": "2025-12-17T19:18:08.696Z",
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"dateUpdated": "2025-12-17T20:30:49.970Z"
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},
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"containers": {
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"cna": {
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"title": "RIOT-OS has NULL pointer dereference in gnrc_ipv6_ext_frag_reass",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-476",
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"lang": "en",
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"description": "CWE-476: NULL Pointer Dereference",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 1.7,
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"baseSeverity": "LOW",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-v8gx-q9m6-5xm9",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-v8gx-q9m6-5xm9"
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},
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{
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"name": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L411",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L411"
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},
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{
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"name": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L420",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L420"
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},
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{
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"name": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L490",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L490"
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},
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{
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"name": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L532",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L532"
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},
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{
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"name": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L534",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L534"
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},
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{
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"name": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L544",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c#L544"
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},
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{
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"name": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c#L150C1-L150C76",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/RIOT-OS/RIOT/blob/eb65305cf9f1b7affb50b17af5c12341b83a8636/sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c#L150C1-L150C76"
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},
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{
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"name": "https://github.com/RIOT-OS/RIOT/releases/tag/2025.10",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/RIOT-OS/RIOT/releases/tag/2025.10"
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},
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{
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"name": "https://github.com/user-attachments/files/23903992/reproducer_1.zip",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/user-attachments/files/23903992/reproducer_1.zip"
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}
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],
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"affected": [
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{
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"vendor": "RIOT-OS",
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"product": "RIOT",
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"versions": [
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{
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"version": "< 2025.10",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2025-12-17T19:18:08.696Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Things (IoT) devices and other embedded devices. A vulnerability was discovered in the IPv6 fragmentation reassembly implementation of RIOT OS v2025.07. When receiving an fragmented IPv6 packet with fragment offset 0 and an empty payload, the payload pointer is set to NULL. However, the implementation still tries to copy the payload into the reassembly buffer, resulting in a NULL pointer dereference which crashes the OS (DoS). To trigger the vulnerability, the `gnrc_ipv6_ext_frag` module must be enabled and the attacker must be able to send arbitrary IPv6 packets to the victim. RIOT OS v2025.10 fixes the issue."
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}
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],
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"source": {
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"advisory": "GHSA-v8gx-q9m6-5xm9",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2025-12-17T20:26:51.611506Z",
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"id": "CVE-2025-66646",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-12-17T20:30:49.970Z"
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}
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}
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]
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}
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} |