{"schemaVersion":3,"id":"USN-7639-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"apache2 vulnerabilities\n\nIt was discovered that the Apache HTTP Server incorrectly handled certain\nContent-Type response headers. A remote attacker could possibly use this\nissue to perform HTTP response splitting attacks. (CVE-2024-42516)\n\nxiaojunjie discovered that the Apache HTTP Server mod_proxy module\nincorrectly handled certain requests. A remote attacker could possibly use\nthis issue to send outbound proxy requests to an arbitrary URL.\n(CVE-2024-43204)\n\nJohn Runyon discovered that the Apache HTTP Server mod_ssl module\nincorrectly escaped certain data. A remote attacker could possibly use this\nissue to insert escape characters into log files. (CVE-2024-47252)\n\nSven Hebrok, Felix Cramer, Tim Storm, Maximilian Radoy, and Juraj\nSomorovsky discovered that the Apache HTTP Server mod_ssl module\nincorrectly handled TLS 1.3 session resumption. A remote attacker could\npossibly use this issue to bypass access control. (CVE-2025-23048)\n\nAnthony CORSIEZ discovered that the Apache HTTP Server mod_proxy_http2\nmodule incorrectly handled missing host headers. A remote attacker could\npossibly use this issue to cause the server to crash, resulting in a denial\nof service. (CVE-2025-49630)\n\nRobert Merget discovered that the Apache HTTP Server mod_ssl module\nincorrectly handled TLS upgrades. A remote attacker could possibly use this\nissue to hijack an HTTP session. This update removes the old \"SSLEngine\noptional\" configuration option, possibly requiring a configuration change\nin certain environments. (CVE-2025-49812)\n\nGal Bar Nahum discovered that the Apache HTTP Server incorrectly handled\ncertain memory operations. A remote attacker could possibly use this\nissue to cause the server to consume resources, leading to a denial of\nservice. (CVE-2025-53020)","dates":{"published":"2025-07-16T17:25:15.000Z","modified":"2026-04-27T18:17:06.183Z","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":"apache2","name":"apache2","label":"apache2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/apache2","purlType":"deb","versions":[{"text":"< 2.4.52-1ubuntu4.15","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.58-1ubuntu8.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.52-1ubuntu4.15 | < 2.4.58-1ubuntu8.7","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-7639-1","label":"ubuntu.com/security/notices/USN-7639-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-42516","label":"ubuntu.com/security/CVE-2024-42516","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-43204","label":"ubuntu.com/security/CVE-2024-43204","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-47252","label":"ubuntu.com/security/CVE-2024-47252","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-23048","label":"ubuntu.com/security/CVE-2025-23048","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-49630","label":"ubuntu.com/security/CVE-2025-49630","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-49812","label":"ubuntu.com/security/CVE-2025-49812","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-53020","label":"ubuntu.com/security/CVE-2025-53020","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2024-42516","CVE-2024-43204","CVE-2024-47252","CVE-2025-23048","CVE-2025-49630","CVE-2025-49812","CVE-2025-53020"],"downstream":[],"duplicates":[],"related":["CVE-2024-42516","CVE-2024-43204","CVE-2024-47252","CVE-2025-23048","CVE-2025-49630","CVE-2025-49812","CVE-2025-53020"]},"timeline":[{"kind":"published","date":"2025-07-16T17:25:15.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T18:17:06.183Z","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":"2026-10-19T06:19:44.186Z","stale":false,"partial":false}}