{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-10T06:14:34.337","vulnerabilities":[{"cve":{"id":"CVE-2021-29457","sourceIdentifier":"security-advisories@github.com","published":"2021-04-19T19:15:17.920","lastModified":"2024-11-21T06:01:08.427","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `insert`. The bug is fixed in version v0.27.4."},{"lang":"es","value":"Exiv2 es una utilidad de línea de comandos y una biblioteca C++ para leer, escribir, eliminar y modificar los metadatos de archivos de imagen. Se encontró un desbordamiento del búfer de pila en Exiv2 versiones v0.27.3 y anteriores. El desbordamiento de la pila es desencadenado cuando es usado Exiv2 para escribir metadatos en un archivo de imagen diseñado. Un atacante podría explotar potencialmente la vulnerabilidad para obtener una ejecución de código, si puede engañar a la víctima para que ejecute Exiv2 en un archivo de imagen diseñado. Note que este bug solo es desencadenado cuando _writing_ los metadatos, que es una operación Exiv2 que es usada con menos frecuencia que _reading_ los metadatos. Por ejemplo, para desencadenar el bug en la aplicación de línea de comandos Exiv2, debe agregar un argumento de línea de comando adicional como \"insert\". El bug es corregido en versión v0.27.4"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","baseScore":6.8,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-122"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:exiv2:exiv2:*:*:*:*:*:*:*:*","versionEndExcluding":"0.27.4","matchCriteriaId":"0A049EBD-7A7E-458F-9ABD-F6626DDEABB9"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","matchCriteriaId":"E460AA51-FCDA-46B9-AE97-E6676AA5E194"},{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","matchCriteriaId":"A930E247-0B43-43CB-98FF-6CE7B8189835"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","matchCriteriaId":"DEECE5FC-CACF-4496-A3E7-164736409252"},{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","matchCriteriaId":"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}]}]}],"references":[{"url":"https://github.com/Exiv2/exiv2/issues/1529","source":"security-advisories@github.com","tags":["Exploit","Patch","Third 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