{"id":"UBUNTU-CVE-2018-1000539","details":"Nov json-jwt version \u003e= 0.5.0 && \u003c 1.9.4 contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability in Decryption of AES-GCM encrypted JSON Web Tokens that can result in Attacker can forge a authentication tag. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in 1.9.4 and later.","modified":"2025-10-24T04:47:21Z","published":"2018-06-26T16:29:00Z","upstream":["CVE-2018-1000539"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-1000539"},{"type":"REPORT","url":"https://github.com/nov/json-jwt/pull/62"},{"type":"REPORT","url":"https://github.com/nov/json-jwt/commit/3393f394f271c87bd42ec23c300727b4437d1638"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-1000539"}],"affected":[{"package":{"name":"ruby-json-jwt","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-json-jwt@1.7.2-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.2-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.7.2-1","binary_name":"ruby-json-jwt"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000539.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}