{"id":"AZL-8962","summary":"CVE-2021-45955 affecting package dnsmasq for versions less than 2.89-2","details":"Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\" However, a contributor states that a security patch (mentioned in 016162.html) is needed","modified":"2026-04-21T04:34:56.302084Z","published":"2022-01-01T00:15:08Z","upstream":["CVE-2021-45955"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45955"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/dnsmasq"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.89-2"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-8962.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}