{"id":"MGASA-2026-0335","summary":"Updated dhcpcd packages fix security vulnerabilities","details":"Attackers can send a crafted DHCPv6 ADVERTISE message containing an\nIA_PD\nIAPREFIX /0 with a valid OPTION_PD_EXCLUDE using an exclude prefix\nlength\nof /121 through /128 to trigger the out-of-bounds write and potentially\ncorrupt adjacent stack memory (CVE: CVE-2026-56114).\nAttackers can repeatedly send Router Advertisements containing Route\nInformation options with a lifetime of zero, triggering unfreed\nallocations in routeinfo_findalloc() that cause linear memory\nexhaustion and eventual daemon crash (CVE: CVE-2026-56116).\n","modified":"2026-08-13T22:00:03.705227515Z","published":"2026-08-13T21:59:25Z","upstream":["CVE-2026-56114","CVE-2026-56116"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2026-0335.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=36063"},{"type":"WEB","url":"https://github.com/NetworkConfiguration/dhcpcd/pull/676"}],"affected":[{"package":{"name":"dhcpcd","ecosystem":"Mageia:10","purl":"pkg:rpm/mageia/dhcpcd?arch=source&distro=mageia-10"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.5.0-1.1.mga10"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0335.json"}}],"schema_version":"1.9.0","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}