CVE-2024-12718

{"id": "CVE-2024-12718", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cna@python.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2025-06-03T13:15:20.183", "references": [{"url": "https://gist.github.com/sethmlarson/52398e33eff261329a0180ac1d54f42f", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/19de092debb3d7e832e5672cc2f7b788d35951da", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/28463dba112af719df1e8b0391c46787ad756dd9", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/3612d8f51741b11f36f8fb0494d79086bac9390a", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/4633f3f497b1ff70e4a35b6fe2c907cbe2d4cb2e", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/9c1110ef6652687d7c55f590f909720eddde965a", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/9e0ac76d96cf80b49055f6d6b9a6763fb9215c2a", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/aa9eb5f757ceff461e6e996f12c89e5d9b583b01", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/dd8f187d0746da151e0025c51680979ac5b4cfb1", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/issues/127987", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/issues/135034", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/pull/135037", "source": "cna@python.org"}, {"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/MAXIJJCUUMCL7ATZNDVEGGHUMQMUUKLG/", "source": "cna@python.org"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "cna@python.org", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "Allows modifying some file metadata (e.g. last modified) with filter=\"data\"\u00a0or file permissions (chmod) with filter=\"tar\"\u00a0of files outside the extraction directory.\nYou are affected by this vulnerability if using the tarfile\u00a0module to extract untrusted tar archives using TarFile.extractall()\u00a0or TarFile.extract()\u00a0using the filter=\u00a0parameter with a value of \"data\"\u00a0or \"tar\". See the tarfile extraction filters documentation https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter \u00a0for more information. Only Python versions 3.12 or later are affected by these vulnerabilities, earlier versions don't include the extraction filter feature.\n\nNote that for Python 3.14 or later the default value of filter=\u00a0changed from \"no filtering\" to `\"data\", so if you are relying on this new default behavior then your usage is also affected.\n\nNote that none of these vulnerabilities significantly affect the installation of source distributions which are tar archives as source distributions already allow arbitrary code execution during the build process. However when evaluating source distributions it's important to avoid installing source distributions with suspicious links."}, {"lang": "es", "value": "Permite modificar algunos metadatos de archivo (p. ej., la \u00faltima modificaci\u00f3n) con filter=\"data\" o permisos de archivo (chmod) con filter=\"tar\" de archivos fuera del directorio de extracci\u00f3n. Esta vulnerabilidad afecta al usar el m\u00f3dulo tarfile para extraer archivos tar no confiables mediante TarFile.extractall() o TarFile.extract() y el par\u00e1metro filter= con el valor \"data\" o \"tar\". Consulte la documentaci\u00f3n sobre filtros de extracci\u00f3n de archivos tar (https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter) para obtener m\u00e1s informaci\u00f3n. Estas vulnerabilidades solo afectan a las versiones de Python 3.12 o posteriores; las versiones anteriores no incluyen la funci\u00f3n de filtro de extracci\u00f3n. Tenga en cuenta que para Python 3.14 o posteriores, el valor predeterminado de filter= cambi\u00f3 de \"sin filtrado\" a \"data\", por lo que si utiliza este nuevo comportamiento predeterminado, su uso tambi\u00e9n se ver\u00e1 afectado. Tenga en cuenta que ninguna de estas vulnerabilidades afecta significativamente la instalaci\u00f3n de distribuciones fuente que son archivos tar, ya que estas permiten la ejecuci\u00f3n de c\u00f3digo arbitrario durante el proceso de compilaci\u00f3n. Sin embargo, al evaluar distribuciones fuente, es importante evitar instalar distribuciones fuente con enlaces sospechosos."}], "lastModified": "2025-06-04T14:54:33.783", "sourceIdentifier": "cna@python.org"}