{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-09-29T18:40:52.974","vulnerabilities":[{"cve":{"id":"CVE-2021-29464","sourceIdentifier":"security-advisories@github.com","published":"2021-04-30T19:15:07.187","lastModified":"2026-06-17T03:47:41.700","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.&#xa0;Se encontró un desbordamiento del búfer de la memoria en Exiv2 versiones v0.27.3 y anteriores.&#xa0;El desbordamiento de la pila es activada cuando se usa Exiv2 para escribir metadatos en un archivo de imagen diseñado.&#xa0;Un atacante podría explotar potencialmente la vulnerabilidad para conseguir una ejecución del código, si puede engañar a la víctima para ejecutar Exiv2 en un archivo de imagen diseñado.&#xa0;Tome en cuenta que este bug solo es activado al escribir los metadatos, que es una operación Exiv2 que es usado con menos frecuencia que leer los metadatos.&#xa0;Por ejemplo, para desencadenar el bug en la aplicación de línea de comandos Exiv2, es necesario agregar un argumento de línea de comando adicional como \"insert\".&#xa0;El bug se corrigió en la versión v0.27.4."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"Exiv2","product":"exiv2","versions":[{"version":"< 0.27.4","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","baseScore":3.3,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":1.8,"impactScore":1.4},{"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"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-787"}]}],"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"}]}]}],"references":[{"url":"https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/","source":"security-advisories@github.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/","source":"security-advisories@github.com"},{"url":"https://security.gentoo.org/glsa/202312-06","source":"security-advisories@github.com"},{"url":"https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202312-06","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}