{ "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-29157", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "url": "https://dovecot.org/security", "refsource": "MISC", "name": "https://dovecot.org/security" }, { "refsource": "CONFIRM", "name": "https://www.openwall.com/lists/oss-security/2021/06/28/1", "url": "https://www.openwall.com/lists/oss-security/2021/06/28/1" }, { "refsource": "FEDORA", "name": "FEDORA-2021-208340a217", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-891c1ab1ac", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/" }, { "refsource": "GENTOO", "name": "GLSA-202107-41", "url": "https://security.gentoo.org/glsa/202107-41" } ] }, "impact": { "cvss": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AC:H/AV:L/A:N/C:H/I:H/PR:L/S:C/UI:N", "version": "3.1" } } }