{"schemaVersion":3,"id":"USN-8678-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"openssl vulnerabilities\n\nIt was discovered that OpenSSL incorrectly handled the QUIC server incoming\nchannel queue. A remote attacker could possibly use this issue to cause\nOpenSSL to use excessive resources, leading to a denial of service. This\nissue only affected Ubuntu 26.04 LTS. (CVE-2026-14456)\n\nIt was discovered that OpenSSL incorrectly handled signature algorithm\nselection when using Raw Public Keys. A remote attacker could possibly use\nthis issue to cause OpenSSL to crash, resulting in a denial of service.\nThis issue only affected Ubuntu 26.04 LTS. (CVE-2026-14457)\n\nIt was discovered that OpenSSL incorrectly handled QUIC INITIAL packet\nprocessing. A remote attacker could possibly use this issue to cause\nOpenSSL to crash, resulting in a denial of service. This issue only\naffected Ubuntu 26.04 LTS. (CVE-2026-18798)\n\nIt was discovered that OpenSSL incorrectly handled buffering of DTLS\nrecords for a future epoch. A remote attacker could possibly use this issue\nto cause OpenSSL to use excessive resources, leading to a denial of\nservice. (CVE-2026-54874)\n\nIt was discovered that OpenSSL incorrectly handled CMS key unwrapping. A\nremote attacker could possibly use this issue to cause a heap buffer\noverflow, leading to a denial of service or arbitrary code execution.\n(CVE-2026-63072)\n\nIt was discovered that OpenSSL incorrectly validated the sender\ndistinguished name in CMP response messages. A remote attacker could\npossibly use this issue to cause OpenSSL to crash, resulting in a denial of\nservice. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-63073)\n\nIt was discovered that OpenSSL incorrectly limited the growth of an\ninternal certificate cache used during CMP operations. A remote attacker\ncould possibly use this issue to cause OpenSSL to use excessive resources,\nleading to a denial of service. (CVE-2026-63074)\n\nIt was discovered that OpenSSL incorrectly handled QUIC ACK-only packet\nretention. A remote attacker could possibly use this issue to cause OpenSSL\nto use excessive resources, leading to a denial of service. This issue only\naffected Ubuntu 26.04 LTS. (CVE-2026-63075)\n\nIt was discovered that OpenSSL incorrectly handled CMP protection algorithm\nvalidation. A remote attacker could possibly use this issue to cause\nOpenSSL to crash, resulting in a denial of service. (CVE-2026-63076)\n\nIt was discovered that OpenSSL incorrectly verified authentication tags\nwhen using certain AEAD ciphers via the EVP_Cipher() interface. An attacker\ncould possibly use this issue to perform AEAD forgery attacks.\n(CVE-2026-75803)","dates":{"published":"2026-08-25T17:38:49.000Z","modified":"2026-09-03T16:02:11.857Z","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":"openssl","name":"openssl","label":"openssl","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/openssl","purlType":"deb","versions":[{"text":"< 3.0.2-0ubuntu1.29","noFixRecorded":false,"fixedIn":null},{"text":"< 3.0.13-0ubuntu3.15","noFixRecorded":false,"fixedIn":null},{"text":"< 3.5.5-1ubuntu3.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.0.2-0ubuntu1.29 | < 3.0.13-0ubuntu3.15 | < 3.5.5-1ubuntu3.4","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8678-1","label":"ubuntu.com/security/notices/USN-8678-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-14456","label":"ubuntu.com/security/CVE-2026-14456","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-14457","label":"ubuntu.com/security/CVE-2026-14457","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-18798","label":"ubuntu.com/security/CVE-2026-18798","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-54874","label":"ubuntu.com/security/CVE-2026-54874","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63072","label":"ubuntu.com/security/CVE-2026-63072","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63073","label":"ubuntu.com/security/CVE-2026-63073","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63074","label":"ubuntu.com/security/CVE-2026-63074","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63075","label":"ubuntu.com/security/CVE-2026-63075","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63076","label":"ubuntu.com/security/CVE-2026-63076","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-75803","label":"ubuntu.com/security/CVE-2026-75803","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-14456","CVE-2026-14457","CVE-2026-18798","CVE-2026-54874","CVE-2026-63072","CVE-2026-63073","CVE-2026-63074","CVE-2026-63075","CVE-2026-63076","CVE-2026-75803"],"downstream":[],"duplicates":[],"related":["CVE-2026-14456","CVE-2026-14457","CVE-2026-18798","CVE-2026-54874","CVE-2026-63072","CVE-2026-63073","CVE-2026-63074","CVE-2026-63075","CVE-2026-63076","CVE-2026-75803"]},"timeline":[{"kind":"published","date":"2026-08-25T17:38:49.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-03T16:02:11.857Z","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":"2026-10-21T01:32:21.697Z","stale":false,"partial":false}}