An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.

An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.

dnsdist-2.0.3-1.1 on GA media

Security update for dnsdist

Affected: Ubuntu:16.04:LTS: dnsdist, Ubuntu:Pro:18.04:LTS: dnsdist, Ubuntu:Pro:20.04:LTS: dnsdist, Ubuntu:Pro:22.04:LTS: dnsdist, Ubuntu:Pro:24.04:LTS: dnsdist, Ubuntu:25.10: dnsdist, Ubuntu:26.04:LTS: dnsdist

An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.

Ein Angreifer kann mehrere Schwachstellen in PowerDNS ausnutzen, um Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen, um einen Denial of Service zu verursachen und potentiell Code auszuführen.