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{"bugzilla": {"description": "mesos: Exposure of HMAC value via timing vulnerability in JWT validation", "id": "1632810", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1632810"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-385", "details": ["Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard `==` operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value."], "name": "CVE-2018-8023", "package_state": [{"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Not affected", "package_name": "mesos", "product_name": "Red Hat Fuse 7"}], "public_date": "2018-09-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-8023\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-8023"], "threat_severity": "Moderate", "upstream_fix": "mesos 1.4.2, mesos 1.5.2, mesos 1.6.1, mesos 1.7.0"}