{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/55205?format=json","vulnerability_id":"VCID-u7sk-kf9y-13gh","summary":"Observable Timing Discrepancy in pypqc\n`kyber512`, `kyber768`, and `kyber1024` on Mac OS \\(or when compiled with clang\\) only: An attacker able to submit many decapsulation requests against a single private key, and to gain timing information about the decapsulation, could recover the private key. Proof-of-concept exploit exists for a local attacker.\n\nCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C","aliases":[{"alias":"GHSA-hvh4-5qr6-3v7r"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/742984?format=json","purl":"pkg:pypi/pypqc@0.0.7.0a2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/pypqc@0.0.7.0a2"}],"affected_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/81741?format=json","purl":"pkg:pypi/pypqc@0.0.4","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-4t6v-gd4e-qycv"},{"vulnerability":"VCID-u7sk-kf9y-13gh"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/pypqc@0.0.4"},{"url":"http://public2.vulnerablecode.io/api/packages/719038?format=json","purl":"pkg:pypi/pypqc@0.0.6","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-4t6v-gd4e-qycv"},{"vulnerability":"VCID-u7sk-kf9y-13gh"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/pypqc@0.0.6"},{"url":"http://public2.vulnerablecode.io/api/packages/719039?format=json","purl":"pkg:pypi/pypqc@0.0.6.post1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-4t6v-gd4e-qycv"},{"vulnerability":"VCID-u7sk-kf9y-13gh"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/pypqc@0.0.6.post1"},{"url":"http://public2.vulnerablecode.io/api/packages/69104?format=json","purl":"pkg:pypi/pypqc@0.0.6.1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-u7sk-kf9y-13gh"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/pypqc@0.0.6.1"},{"url":"http://public2.vulnerablecode.io/api/packages/742982?format=json","purl":"pkg:pypi/pypqc@0.0.6.1.post1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-u7sk-kf9y-13gh"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/pypqc@0.0.6.1.post1"},{"url":"http://public2.vulnerablecode.io/api/packages/742983?format=json","purl":"pkg:pypi/pypqc@0.0.6.2rc1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-u7sk-kf9y-13gh"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/pypqc@0.0.6.2rc1"},{"url":"http://public2.vulnerablecode.io/api/packages/81742?format=json","purl":"pkg:pypi/pypqc@0.0.6.2","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-u7sk-kf9y-13gh"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/pypqc@0.0.6.2"}],"references":[{"reference_url":"https://github.com/JamesTheAwesomeDude/pypqc","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/JamesTheAwesomeDude/pypqc"},{"reference_url":"https://github.com/PQClean/PQClean/issues/556","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/PQClean/PQClean/issues/556"},{"reference_url":"https://github.com/advisories/GHSA-hvh4-5qr6-3v7r","reference_id":"GHSA-hvh4-5qr6-3v7r","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-hvh4-5qr6-3v7r"},{"reference_url":"https://github.com/JamesTheAwesomeDude/pypqc/security/advisories/GHSA-hvh4-5qr6-3v7r","reference_id":"GHSA-hvh4-5qr6-3v7r","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/JamesTheAwesomeDude/pypqc/security/advisories/GHSA-hvh4-5qr6-3v7r"}],"weaknesses":[{"cwe_id":208,"name":"Observable Timing Discrepancy","description":"Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not."},{"cwe_id":937,"name":"OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities","description":"Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013."},{"cwe_id":1035,"name":"OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities","description":"Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017."},{"cwe_id":385,"name":"Covert Timing Channel","description":"Covert timing channels convey information by modulating some aspect of system behavior over time, so that the program receiving the information can observe system behavior and infer protected information."},{"cwe_id":733,"name":"Compiler Optimization Removal or Modification of Security-critical Code","description":"The developer builds a security-critical protection mechanism into the software, but the compiler optimizes the program such that the mechanism is removed or modified."}],"exploits":[],"severity_range_score":"7.0 - 8.9","exploitability":"0.5","weighted_severity":"8.0","risk_score":4.0,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-u7sk-kf9y-13gh"}