{"schema_version":"1.7.2","id":"OESA-2026-3627","modified":"2026-09-05T15:03:17Z","published":"2026-09-05T15:03:17Z","upstream":["CVE-2026-64193"],"summary":"perl-Net-DNS security update","details":"Net :: DNS is a collection of Perl's Domain Name System resolvers. It allows programmers to perform DNS queries for gethostbyname and gethostbyaddr functions.\r\n\r\nSecurity Fix(es):\n\nNet::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR.\n\nNet::DNS::RR::OPT::EXTENDED_ERROR::_decompose parses the EXTRA-TEXT field of an EDNS EXTENDED-ERROR option (RFC 8914) by tokenising the raw bytes and passing the result to Perl's eval. There is some escaping done for $ and @, but not for backticks. This can be exploited for command execution if $pkt->edns->option('EXTENDED-ERROR') is called in array context, for example with a payload of {0:`"<command>"`} in EXTRA-TEXT.(CVE-2026-64193)","affected":[{"package":{"ecosystem":"openEuler:24.03-LTS-SP3","name":"perl-Net-DNS","purl":"pkg:rpm/openEuler/perl-Net-DNS&distro=openEuler-24.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.40-2.oe2403sp3"}]}],"ecosystem_specific":{"noarch":["perl-Net-DNS-1.40-2.oe2403sp3.noarch.rpm","perl-Net-DNS-help-1.40-2.oe2403sp3.noarch.rpm"],"src":["perl-Net-DNS-1.40-2.oe2403sp3.src.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3627"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64193"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"database_specific":{"severity":"Critical"}}