{ "containers": { "cna": { "affected": [ { "product": "ppp", "vendor": "Canonical", "versions": [ { "changes": [ { "at": "2.4.5-5.1ubuntu2.3+esm2", "status": "unaffected" } ], "lessThan": "2.4.5-5ubuntu1.4", "status": "affected", "version": "2.4.5", "versionType": "custom" }, { "changes": [ { "at": "2.4.7-2+2ubuntu1.3", "status": "unaffected" }, { "at": "2.4.7-2+4.1ubuntu5.1", "status": "unaffected" }, { "at": "2.4.7-2+4.1ubuntu6", "status": "unaffected" } ], "lessThan": "2.4.7-1+2ubuntu1.16.04.3", "status": "affected", "version": "2.4.7", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "value": "Thomas Chauchefoin working with Trend Micro's Zero Day Initiative" } ], "datePublic": "2020-08-04T00:00:00", "descriptions": [ { "lang": "en", "value": "The modprobe child process in the ./debian/patches/load_ppp_generic_if_needed patch file incorrectly handled module loading. A local non-root attacker could exploit the MODPROBE_OPTIONS environment variable to read arbitrary root files. Fixed in 2.4.5-5ubuntu1.4, 2.4.5-5.1ubuntu2.3+esm2, 2.4.7-1+2ubuntu1.16.04.3, 2.4.7-2+2ubuntu1.3, 2.4.7-2+4.1ubuntu5.1, 2.4.7-2+4.1ubuntu6. 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