170 lines
7.4 KiB
JSON
170 lines
7.4 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-2026-61674",
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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": "2026-07-10T18:25:21.468Z",
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"datePublished": "2026-09-21T16:10:15.276Z",
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"dateUpdated": "2026-09-21T18:52:25.840Z"
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},
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"containers": {
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"cna": {
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"title": "Fluent Bit: Remote stack buffer overflow in Fluent Bit `out_forward` Secure-Forward `PONG` handler",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-121",
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"lang": "en",
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"description": "CWE-121: Stack-based Buffer Overflow",
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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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"descriptions": [
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{
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"cweId": "CWE-787",
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"lang": "en",
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"description": "CWE-787: Out-of-bounds Write",
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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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"descriptions": [
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{
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"cweId": "CWE-843",
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"lang": "en",
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"description": "CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')",
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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": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 9.2,
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"baseSeverity": "CRITICAL",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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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/fluent/fluent-bit/security/advisories/GHSA-jrp8-r9hx-gf73",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/fluent/fluent-bit/security/advisories/GHSA-jrp8-r9hx-gf73"
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},
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{
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"name": "https://github.com/fluent/fluent-bit/pull/11945",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/fluent/fluent-bit/pull/11945"
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},
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{
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"name": "https://github.com/fluent/fluent-bit/commit/45486556be9d023e194665e243f156b228e195e0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/fluent/fluent-bit/commit/45486556be9d023e194665e243f156b228e195e0"
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},
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{
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"name": "https://github.com/fluent/fluent-bit/releases/tag/v5.0.8",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/fluent/fluent-bit/releases/tag/v5.0.8"
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}
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],
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"affected": [
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{
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"vendor": "fluent",
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"product": "fluent-bit",
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"versions": [
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{
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"version": ">= 0.11.0, < 5.0.8",
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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": "2026-09-21T16:10:15.276Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Fluent Bit is a fast and lightweight logs, metrics, and traces processor for Linux, BSD, macOS, and Windows. From 0.11.0 until 5.0.8, plugins/out_forward/forward.c secure_forward_pong copies the server-controlled PONG[2] reason into the 32-byte stack buffer msg with memcpy without checking its MessagePack type or length. An attacker who controls or can impersonate an out_forward Secure Forward destination configured with Shared_Key or Empty_Shared_Key can send an oversized reason during the first handshake and overwrite stack control data. Protected builds reliably terminate, while builds without a stack canary or with a disclosure can allow remote code execution as the Fluent Bit process user. When the opt-in --supervisor mode is used, fork-only respawns preserve the canary and address layout, allowing repeated crash-or-survive probes to support code execution on a hardened build; ordinary exec-based or service-manager restarts do not preserve that state. This issue is fixed in version 5.0.8."
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}
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],
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"source": {
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"advisory": "GHSA-jrp8-r9hx-gf73",
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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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"references": [
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{
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"url": "https://github.com/fluent/fluent-bit/security/advisories/GHSA-jrp8-r9hx-gf73",
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"tags": [
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"exploit"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-09-21T18:51:32.206511Z",
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"id": "CVE-2026-61674",
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"options": [
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{
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"Exploitation": "poc"
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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": "total"
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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": "2026-09-21T18:52:25.840Z"
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}
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}
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]
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}
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} |