{"schemaVersion":3,"id":"USN-7404-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"phpseclib vulnerabilities\n\nIt was discovered that phpseclib did not correctly handle RSA PKCS#1\nv1.5 signature verification. An attacker could possibly use this issue to\nbypass authentication. This issue only affected Ubuntu 20.04 LTS.\n(CVE-2021-30130)\n\nIt was discovered that phpseclib did not correctly handle certain\ncharacters in certain TLS fields, which could lead to name confusion.\nAn attacker could possibly use this issue to bypass authentication.\n(CVE-2023-52892)\n\nIt was discovered that phpseclib incorrectly limited the size of prime\nnumbers generated by isPrime. An attacker could possibly use this issue\nto cause a denial of service. (CVE-2024-27354)\n\nIt was discovered that phpseclib did not correctly handle processing the\nASN.1 object identifier of a certificate. An attacker could possibly use\nthis issue to cause a denial of service. This issue only affected\nUbuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2024-27355)","dates":{"published":"2025-04-02T01:35:46.000Z","modified":"2026-06-25T13:32:30.293Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"php-phpseclib","name":"php-phpseclib","label":"php-phpseclib","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/php-phpseclib","purlType":"deb","versions":[{"text":"< 2.0.1-1ubuntu0.1~esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.0.9-1ubuntu0.1~esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.0.23-2ubuntu0.1~esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.0.36-1ubuntu0.1~esm2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.0.1-1ubuntu0.1~esm2 | < 2.0.9-1ubuntu0.1~esm2 | < 2.0.23-2ubuntu0.1~esm2 | < 2.0.36-1ubuntu0.1~esm2","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"php-phpseclib3","name":"php-phpseclib3","label":"php-phpseclib3","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/php-phpseclib3","purlType":"deb","versions":[{"text":"< 3.0.13-1ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.0.13-1ubuntu0.1~esm1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"phpseclib","name":"phpseclib","label":"phpseclib","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/phpseclib","purlType":"deb","versions":[{"text":"< 1.0.1-3ubuntu0.1+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.0.9-1ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.0.18-2ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.0.20-1ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.1-3ubuntu0.1+esm1 | < 1.0.9-1ubuntu0.1~esm1 | < 1.0.18-2ubuntu0.1~esm1 | < 1.0.20-1ubuntu0.1~esm1","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-7404-1","label":"ubuntu.com/security/notices/USN-7404-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-30130","label":"ubuntu.com/security/CVE-2021-30130","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-52892","label":"ubuntu.com/security/CVE-2023-52892","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-27354","label":"ubuntu.com/security/CVE-2024-27354","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-27355","label":"ubuntu.com/security/CVE-2024-27355","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-30130","CVE-2023-52892","CVE-2024-27354","CVE-2024-27355"],"downstream":[],"duplicates":[],"related":["CVE-2021-30130","CVE-2023-52892","CVE-2024-27354","CVE-2024-27355"]},"timeline":[{"kind":"published","date":"2025-04-02T01:35:46.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-25T13:32:30.293Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T02:00:12.336Z","stale":false,"partial":false}}