2 lines
3.6 KiB
JSON
2 lines
3.6 KiB
JSON
{"affected":[{"affectedData":[{"defaultStatus":"unaffected","packageName":"Zephyr","product":"Zephyr","repo":"https://github.com/zephyrproject-rtos/zephyr","vendor":"zephyrproject-rtos","versions":[{"lessThan":"4.3.1","status":"affected","version":"*","versionType":"git"}]}],"source":"vulnerabilities@zephyrproject.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*","matchCriteriaId":"7D912614-A39E-4C9B-AA54-187BC26337B9","versionEndIncluding":"4.3.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTP_MSG_MANAGEMENT message to set an unvalidated negative log_announce_interval value in the port's data set. When a subsequent PTP_MSG_ANNOUNCE message is processed, port_timer_set_timeout_random computes a timeout as NSEC_PER_SEC >> -log_seconds; if the attacker-supplied value is sufficiently negative (e.g., -127), the shift amount exceeds the 64-bit integer width, triggering undefined behavior in C. This can cause a system crash via a compiler-generated illegal instruction trap on some architectures, or produce an erroneous zero timeout leading to resource starvation loops or other logical errors."},{"lang":"es","value":"Una vulnerabilidad de desplazamiento de bits en el subsistema PTP de Zephyr permite a un atacante remoto causar comportamiento indefinido y posibles fallos del sistema. Un atacante envía un mensaje PTP_MSG_MANAGEMENT manipulado para establecer un valor negativo no validado de log_announce_interval en el conjunto de datos del puerto. Cuando se procesa un mensaje PTP_MSG_ANNOUNCE subsiguiente, port_timer_set_timeout_random calcula un tiempo de espera como NSEC_PER_SEC >> -log_seconds; si el valor proporcionado por el atacante es suficientemente negativo (p. ej., -127), la cantidad de desplazamiento excede el ancho de entero de 64 bits, lo que desencadena un comportamiento indefinido en C. Esto puede causar un fallo del sistema a través de una trampa de instrucción ilegal generada por el compilador en algunas arquitecturas, o producir un tiempo de espera cero erróneo lo que lleva a bucles de inanición de recursos u otros errores lógicos."}],"id":"CVE-2026-5072","lastModified":"2026-10-15T23:17:37.767","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":2.8,"impactScore":3.6,"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-5072","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-05-22T16:27:18.853870Z","version":"2.0.3"}}]},"published":"2026-05-22T08:16:15.027","references":[{"source":"vulnerabilities@zephyrproject.org","tags":["Exploit","Patch","Vendor Advisory"],"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3v98-458v-388r"}],"sourceIdentifier":"vulnerabilities@zephyrproject.org","vulnStatus":"Analyzed","weaknesses":[{"description":[{"lang":"en","value":"CWE-1335"}],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}]}
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