2 lines
4.5 KiB
JSON
2 lines
4.5 KiB
JSON
{"affected":[{"affectedData":[{"product":"Linux Kernel","vendor":"n/a","versions":[{"status":"affected","version":"Linux Kernel v5.4.54, Linux Kernel v5.4.66"}]}],"source":"talos-cna@cisco.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:5.4.54:*:*:*:*:*:*:*","matchCriteriaId":"633D05FD-ACF8-49D1-BEEB-E93D7C0EB258","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.4.66:*:*:*:*:*:*:*","matchCriteriaId":"08CD832A-636A-4BF7-B1D2-2D244AEACDD1","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*","matchCriteriaId":"6EDB6772-7FDB-45FF-8D72-952902A7EE56","vulnerable":true},{"criteria":"cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*","matchCriteriaId":"9955F62A-75D3-4347-9AD3-5947FC365838","vulnerable":true},{"criteria":"cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*","matchCriteriaId":"7A6D77C7-A2F4-4700-AB5A-3EC853496ECA","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11"},{"lang":"es","value":"Se presenta una vulnerabilidad de divulgación de información en la funcionalidad ARM SIGPAGE del Kernel de Linux versiones v5.4.66 y v5.4.54. La última versión (5.11-rc4) parece seguir siendo vulnerable. Una aplicación de userland puede leer el contenido de la sigpage, que puede filtrar el contenido de la memoria del kernel. Un atacante puede leer la memoria de un proceso en un desplazamiento específico para desencadenar esta vulnerabilidad. Esto fue corregido en las versiones del kernel: 4.14.222 4.19.177 5.4.99 5.10.17 5.11"}],"id":"CVE-2021-21781","lastModified":"2026-06-17T03:36:06.337","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"LOW","cvssData":{"accessComplexity":"LOW","accessVector":"LOCAL","authentication":"NONE","availabilityImpact":"NONE","baseScore":2.1,"confidentialityImpact":"PARTIAL","integrityImpact":"NONE","vectorString":"AV:L/AC:L/Au:N/C:P/I:N/A:N","version":"2.0"},"exploitabilityScore":3.9,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV30":[{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":4.0,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.0"},"exploitabilityScore":2.5,"impactScore":1.4,"source":"talos-cna@cisco.com","type":"Secondary"}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.3,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"exploitabilityScore":1.8,"impactScore":1.4,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-08-18T15:15:07.733","references":[{"source":"talos-cna@cisco.com","tags":["Exploit","Third Party Advisory"],"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243"},{"source":"talos-cna@cisco.com","tags":["Patch","Third Party Advisory"],"url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"url":"https://www.oracle.com/security-alerts/cpujul2022.html"}],"sourceIdentifier":"talos-cna@cisco.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-908"}],"source":"talos-cna@cisco.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-908"}],"source":"nvd@nist.gov","type":"Primary"}]}
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