{"id":"ALPINE-CVE-2018-5733","details":"A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0.","modified":"2025-11-19T06:15:32.439226Z","published":"2019-01-16T20:29:00.753Z","upstream":["CVE-2018-5733"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2018-5733"}],"affected":[{"package":{"name":"dhcp","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/dhcp?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-r0"}]}],"versions":["4.1.0-r0","4.1.0_p1-r0","4.1.0_p1-r1","4.1.0_p1-r10","4.1.0_p1-r2","4.1.0_p1-r3","4.1.0_p1-r4","4.1.0_p1-r5","4.1.0_p1-r6","4.1.0_p1-r7","4.1.0_p1-r8","4.1.0_p1-r9","4.1.1_p1-r0","4.1.1_p1-r1","4.2.0-r0","4.2.0_p1-r0","4.2.0_p2-r0","4.2.1-r0","4.2.1_p1-r0","4.2.1_p1-r1","4.2.2-r0","4.2.3-r0","4.2.3_p1-r0","4.2.3_p2-r0","4.2.3_p2-r1","4.2.4-r0","4.2.4_p1-r0","4.2.4_p1-r1","4.2.4_p2-r0","4.2.5-r0","4.2.5_p1-r0","4.2.5_p1-r1","4.2.5_p1-r2","4.3.0-r0","4.3.0-r1","4.3.1-r0","4.3.1-r1","4.3.2-r0","4.3.3-r0","4.3.3_p1-r0","4.3.4-r0","4.3.4-r1","4.3.4-r2","4.3.4-r3","4.3.5-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-5733.json"}},{"package":{"name":"dhcp","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/dhcp?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-r0"}]}],"versions":["4.1.0-r0","4.1.0_p1-r0","4.1.0_p1-r1","4.1.0_p1-r10","4.1.0_p1-r2","4.1.0_p1-r3","4.1.0_p1-r4","4.1.0_p1-r5","4.1.0_p1-r6","4.1.0_p1-r7","4.1.0_p1-r8","4.1.0_p1-r9","4.1.1_p1-r0","4.1.1_p1-r1","4.2.0-r0","4.2.0_p1-r0","4.2.0_p2-r0","4.2.1-r0","4.2.1_p1-r0","4.2.1_p1-r1","4.2.2-r0","4.2.3-r0","4.2.3_p1-r0","4.2.3_p2-r0","4.2.3_p2-r1","4.2.4-r0","4.2.4_p1-r0","4.2.4_p1-r1","4.2.4_p2-r0","4.2.5-r0","4.2.5_p1-r0","4.2.5_p1-r1","4.2.5_p1-r2","4.3.0-r0","4.3.0-r1","4.3.1-r0","4.3.1-r1","4.3.2-r0","4.3.3-r0","4.3.3_p1-r0","4.3.4-r0","4.3.4-r1","4.3.4-r2","4.3.4-r3","4.3.5-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-5733.json"}},{"package":{"name":"dhcp","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/dhcp?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-r0"}]}],"versions":["4.1.0-r0","4.1.0_p1-r0","4.1.0_p1-r1","4.1.0_p1-r10","4.1.0_p1-r2","4.1.0_p1-r3","4.1.0_p1-r4","4.1.0_p1-r5","4.1.0_p1-r6","4.1.0_p1-r7","4.1.0_p1-r8","4.1.0_p1-r9","4.1.1_p1-r0","4.1.1_p1-r1","4.2.0-r0","4.2.0_p1-r0","4.2.0_p2-r0","4.2.1-r0","4.2.1_p1-r0","4.2.1_p1-r1","4.2.2-r0","4.2.3-r0","4.2.3_p1-r0","4.2.3_p2-r0","4.2.3_p2-r1","4.2.4-r0","4.2.4_p1-r0","4.2.4_p1-r1","4.2.4_p2-r0","4.2.5-r0","4.2.5_p1-r0","4.2.5_p1-r1","4.2.5_p1-r2","4.3.0-r0","4.3.0-r1","4.3.1-r0","4.3.1-r1","4.3.2-r0","4.3.3-r0","4.3.3_p1-r0","4.3.4-r0","4.3.4-r1","4.3.4-r2","4.3.4-r3","4.3.5-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-5733.json"}},{"package":{"name":"dhcp","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/dhcp?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-r0"}]}],"versions":["4.1.0-r0","4.1.0_p1-r0","4.1.0_p1-r1","4.1.0_p1-r10","4.1.0_p1-r2","4.1.0_p1-r3","4.1.0_p1-r4","4.1.0_p1-r5","4.1.0_p1-r6","4.1.0_p1-r7","4.1.0_p1-r8","4.1.0_p1-r9","4.1.1_p1-r0","4.1.1_p1-r1","4.2.0-r0","4.2.0_p1-r0","4.2.0_p2-r0","4.2.1-r0","4.2.1_p1-r0","4.2.1_p1-r1","4.2.2-r0","4.2.3-r0","4.2.3_p1-r0","4.2.3_p2-r0","4.2.3_p2-r1","4.2.4-r0","4.2.4_p1-r0","4.2.4_p1-r1","4.2.4_p2-r0","4.2.5-r0","4.2.5_p1-r0","4.2.5_p1-r1","4.2.5_p1-r2","4.3.0-r0","4.3.0-r1","4.3.1-r0","4.3.1-r1","4.3.2-r0","4.3.3-r0","4.3.3_p1-r0","4.3.4-r0","4.3.4-r1","4.3.4-r2","4.3.4-r3","4.3.5-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-5733.json"}},{"package":{"name":"dhcp","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/dhcp?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-r0"}]}],"versions":["4.1.0-r0","4.1.0_p1-r0","4.1.0_p1-r1","4.1.0_p1-r10","4.1.0_p1-r2","4.1.0_p1-r3","4.1.0_p1-r4","4.1.0_p1-r5","4.1.0_p1-r6","4.1.0_p1-r7","4.1.0_p1-r8","4.1.0_p1-r9","4.1.1_p1-r0","4.1.1_p1-r1","4.2.0-r0","4.2.0_p1-r0","4.2.0_p2-r0","4.2.1-r0","4.2.1_p1-r0","4.2.1_p1-r1","4.2.2-r0","4.2.3-r0","4.2.3_p1-r0","4.2.3_p2-r0","4.2.3_p2-r1","4.2.4-r0","4.2.4_p1-r0","4.2.4_p1-r1","4.2.4_p2-r0","4.2.5-r0","4.2.5_p1-r0","4.2.5_p1-r1","4.2.5_p1-r2","4.3.0-r0","4.3.0-r1","4.3.1-r0","4.3.1-r1","4.3.2-r0","4.3.3-r0","4.3.3_p1-r0","4.3.4-r0","4.3.4-r1","4.3.4-r2","4.3.4-r3","4.3.5-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-5733.json"}},{"package":{"name":"dhcp","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/dhcp?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-r0"}]}],"versions":["4.1.0-r0","4.1.0_p1-r0","4.1.0_p1-r1","4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