{"id":"ALPINE-CVE-2017-9789","details":"When under stress, closing many connections, the HTTP/2 handling code in Apache httpd 2.4.26 would sometimes access memory after it has been freed, resulting in potentially erratic behaviour.","modified":"2025-11-19T06:11:53.505886Z","published":"2017-07-13T16:29:00.257Z","upstream":["CVE-2017-9789"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2017-9789"}],"affected":[{"package":{"name":"apache2","ecosystem":"Alpine:v3.3","purl":"pkg:apk/alpine/apache2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.27-r0"}]}],"versions":["2.2.16-r0","2.2.16-r1","2.2.16-r2","2.2.16-r3","2.2.17-r0","2.2.17-r1","2.2.17-r2","2.2.17-r3","2.2.17-r4","2.2.17-r5","2.2.20-r0","2.2.21-r0","2.2.21-r1","2.2.21-r2","2.2.21-r3","2.2.22-r0","2.2.22-r1","2.4.10-r0","2.4.12-r0","2.4.12-r1","2.4.12-r2","2.4.12-r3","2.4.12-r4","2.4.16-r0","2.4.17-r0","2.4.17-r1","2.4.17-r2","2.4.17-r3","2.4.17-r4","2.4.17-r5","2.4.17-r6","2.4.18-r0","2.4.18-r1","2.4.20-r0","2.4.23-r0","2.4.23-r1","2.4.25-r0","2.4.26-r0","2.4.3-r0","2.4.3-r1","2.4.3-r2","2.4.4-r0","2.4.4-r1","2.4.6-r0","2.4.6-r1","2.4.6-r2","2.4.6-r3","2.4.6-r4","2.4.7-r0","2.4.9-r0","2.4.9-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-9789.json"}},{"package":{"name":"apache2","ecosystem":"Alpine:v3.4","purl":"pkg:apk/alpine/apache2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.27-r0"}]}],"versions":["2.2.16-r0","2.2.16-r1","2.2.16-r2","2.2.16-r3","2.2.17-r0","2.2.17-r1","2.2.17-r2","2.2.17-r3","2.2.17-r4","2.2.17-r5","2.2.20-r0","2.2.21-r0","2.2.21-r1","2.2.21-r2","2.2.21-r3","2.2.22-r0","2.2.22-r1","2.4.10-r0","2.4.12-r0","2.4.12-r1","2.4.12-r2","2.4.12-r3","2.4.12-r4","2.4.16-r0","2.4.17-r0","2.4.17-r1","2.4.17-r2","2.4.17-r3","2.4.17-r4","2.4.17-r5","2.4.17-r6","2.4.17-r7","2.4.18-r0","2.4.18-r1","2.4.18-r2","2.4.20-r0","2.4.20-r1","2.4.20-r2","2.4.23-r0","2.4.23-r1","2.4.23-r2","2.4.23-r3","2.4.25-r0","2.4.26-r0","2.4.3-r0","2.4.3-r1","2.4.3-r2","2.4.4-r0","2.4.4-r1","2.4.6-r0","2.4.6-r1","2.4.6-r2","2.4.6-r3","2.4.6-r4","2.4.7-r0","2.4.9-r0","2.4.9-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-9789.json"}},{"package":{"name":"apache2","ecosystem":"Alpine:v3.5","purl":"pkg:apk/alpine/apache2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.27-r0"}]}],"versions":["2.2.16-r0","2.2.16-r1","2.2.16-r2","2.2.16-r3","2.2.17-r0","2.2.17-r1","2.2.17-r2","2.2.17-r3","2.2.17-r4","2.2.17-r5","2.2.20-r0","2.2.21-r0","2.2.21-r1","2.2.21-r2","2.2.21-r3","2.2.22-r0","2.2.22-r1","2.4.10-r0","2.4.12-r0","2.4.12-r1","2.4.12-r2","2.4.12-r3","2.4.12-r4","2.4.16-r0","2.4.17-r0","2.4.17-r1","2.4.17-r2","2.4.17-r3","2.4.17-r4","2.4.17-r5","2.4.17-r6","2.4.17-r7","2.4.18-r0","2.4.18-r1","2.4.18-r2","2.4.20-r0","2.4.20-r1","2.4.20-r2","2.4.23-r0","2.4.23-r1","2.4.23-r10","2.4.23-r2","2.4.23-r3","2.4.23-r4","2.4.23-r5","2.4.23-r6","2.4.23-r7","2.4.23-r8","2.4.23-r9","2.4.25-r0","2.4.26-r0","2.4.3-r0","2.4.3-r1","2.4.3-r2","2.4.4-r0","2.4.4-r1","2.4.6-r0","2.4.6-r1","2.4.6-r2","2.4.6-r3","2.4.6-r4","2.4.7-r0","2.4.9-r0","2.4.9-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-9789.json"}},{"package":{"name":"apache2","ecosystem":"Alpine:v3.6","purl":"pkg:apk/alpine/apache2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.27-r0"}]}],"versions":["2.2.16-r0","2.2.16-r1","2.2.16-r2","2.2.16-r3","2.2.17-r0","2.2.17-r1","2.2.17-r2","2.2.17-r3","2.2.17-r4","2.2.17-r5","2.2.20-r0","2.2.21-r0","2.2.21-r1","2.2.21-r2","2.2.21-r3","2.2.22-r0","2.2.22-r1","2.4.10-r0","2.4.12-r0","2.4.12-r1","2.4.12-r2","2.4.12-r3","2.4.12-r4","2.4.16-r0","2.4.17-r0","2.4.17-r1","2.4.17-r2","2.4.17-r3","2.4.17-r4","2.4.17-r5","2.4.17-r6","2.4.17-r7","2.4.18-r0","2.4.18-r1","2.4.18-r2","2.4.20-r0","2.4.20-r1","2.4.20-r2","2.4.23-r0","2.4.23-r1","2.4.23-r10","2.4.23-r2","2.4.23-r3","2.4.23-r4","2.4.23-r5","2.4.23-r6","2.4.23-r7","2.4.23-r8","2.4.23-r9","2.4.25-r0","2.4.25-r1","2.4.26-r0","2.4.3-r0","2.4.3-r1","2.4.3-r2","2.4.4-r0","2.4.4-r1","2.4.6-r0","2.4.6-r1","2.4.6-r2","2.4.6-r3","2.4.6-r4","2.4.7-r0","2.4.9-r0","2.4.9-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-9789.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}