{"id":"USN-8678-1","summary":"openssl vulnerabilities","details":"It 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)","modified":"2026-08-27T11:01:17.190666050Z","published":"2026-08-25T17:38:49Z","related":["UBUNTU-CVE-2026-14456","UBUNTU-CVE-2026-14457","UBUNTU-CVE-2026-18798","UBUNTU-CVE-2026-54874","UBUNTU-CVE-2026-63072","UBUNTU-CVE-2026-63073","UBUNTU-CVE-2026-63074","UBUNTU-CVE-2026-63075","UBUNTU-CVE-2026-63076","UBUNTU-CVE-2026-75803"],"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","UBUNTU-CVE-2026-14456","UBUNTU-CVE-2026-14457","UBUNTU-CVE-2026-18798","UBUNTU-CVE-2026-54874","UBUNTU-CVE-2026-63072","UBUNTU-CVE-2026-63073","UBUNTU-CVE-2026-63074","UBUNTU-CVE-2026-63075","UBUNTU-CVE-2026-63076","UBUNTU-CVE-2026-75803"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8678-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-14456"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-14457"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-18798"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-54874"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63072"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63073"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63074"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63075"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63076"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-75803"}],"affected":[{"package":{"name":"openssl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.2-0ubuntu1.29"}]}],"versions":["1.1.1l-1ubuntu1","3.0.0-1ubuntu1","3.0.1-0ubuntu1","3.0.2-0ubuntu1","3.0.2-0ubuntu1.1","3.0.2-0ubuntu1.2","3.0.2-0ubuntu1.4","3.0.2-0ubuntu1.5","3.0.2-0ubuntu1.6","3.0.2-0ubuntu1.7","3.0.2-0ubuntu1.8","3.0.2-0ubuntu1.9","3.0.2-0ubuntu1.10","3.0.2-0ubuntu1.12","3.0.2-0ubuntu1.13","3.0.2-0ubuntu1.14","3.0.2-0ubuntu1.15","3.0.2-0ubuntu1.16","3.0.2-0ubuntu1.17","3.0.2-0ubuntu1.18","3.0.2-0ubuntu1.19","3.0.2-0ubuntu1.20","3.0.2-0ubuntu1.21","3.0.2-0ubuntu1.23","3.0.2-0ubuntu1.25","3.0.2-0ubuntu1.26"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssl3","binary_version":"3.0.2-0ubuntu1.29"},{"binary_name":"openssl","binary_version":"3.0.2-0ubuntu1.29"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-54874","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-63072","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-63074","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-63076","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-75803","severity":[{"type":"Ubuntu","score":"low"}]}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8678-1.json"}},{"package":{"name":"openssl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.13-0ubuntu3.15"}]}],"versions":["3.0.10-1ubuntu2","3.0.10-1ubuntu2.1","3.0.10-1ubuntu3","3.0.10-1ubuntu4","3.0.13-0ubuntu2","3.0.13-0ubuntu3","3.0.13-0ubuntu3.1","3.0.13-0ubuntu3.2","3.0.13-0ubuntu3.3","3.0.13-0ubuntu3.4","3.0.13-0ubuntu3.5","3.0.13-0ubuntu3.6","3.0.13-0ubuntu3.7","3.0.13-0ubuntu3.9","3.0.13-0ubuntu3.11","3.0.13-0ubuntu3.12"],"ecosystem_specific":{"binaries":[{"binary_name":"libssl3t64","binary_version":"3.0.13-0ubuntu3.15"},{"binary_name":"openssl","binary_version":"3.0.13-0ubuntu3.15"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8678-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2026-54874"},{"id":"CVE-2026-63072","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-63074","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-63076"},{"id":"CVE-2026-75803","severity":[{"score":"low","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:24.04:LTS"}}},{"package":{"name":"openssl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.5-1ubuntu3.4"}]}],"versions":["3.5.3-1ubuntu2","3.5.5-1ubuntu1","3.5.5-1ubuntu3","3.5.5-1ubuntu3.2","3.5.5-1ubuntu3.3"],"ecosystem_specific":{"availability":"No 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