Executive Summary

Informations
Name CVE-2023-50868 First vendor Publication 2024-02-14
Vendor Cve Last vendor Modification 2024-03-07

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50868

Sources (Detail)

http://www.openwall.com/lists/oss-security/2024/02/16/2
http://www.openwall.com/lists/oss-security/2024/02/16/3
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...
https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
https://kb.isc.org/docs/cve-2023-50868
https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
https://security.netapp.com/advisory/ntap-20240307-0008/
https://www.isc.org/blogs/2024-bind-security-release/
Source Url

Alert History

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Date Informations
2024-03-07 21:27:31
  • Multiple Updates
2024-03-04 09:27:30
  • Multiple Updates
2024-02-29 09:27:28
  • Multiple Updates
2024-02-26 21:27:28
  • Multiple Updates
2024-02-23 09:27:27
  • Multiple Updates
2024-02-21 17:27:28
  • Multiple Updates
2024-02-19 09:27:26
  • Multiple Updates
2024-02-18 09:27:25
  • Multiple Updates
2024-02-17 00:27:26
  • Multiple Updates
2024-02-15 09:27:26
  • Multiple Updates
2024-02-15 05:27:22
  • Multiple Updates
2024-02-14 21:27:26
  • First insertion