CVE ID:	CVE-2023-50868
Description:	The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.
Test IDs:	1.3.6.1.4.1.25623.1.0.885773
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2023-50868 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/ https://access.redhat.com/security/cve/CVE-2023-50868 https://bugzilla.suse.com/show_bug.cgi?id=1219826 https://datatracker.ietf.org/doc/html/rfc5155 https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1 https://kb.isc.org/docs/cve-2023-50868 https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/ https://www.isc.org/blogs/2024-bind-security-release/ https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html http://www.openwall.com/lists/oss-security/2024/02/16/2 http://www.openwall.com/lists/oss-security/2024/02/16/3