Куда я попал?
SECURITM это SGRC система, ? автоматизирующая процессы в службах информационной безопасности. SECURITM помогает построить и управлять ИСПДн, КИИ, ГИС, СМИБ/СУИБ, банковскими системами защиты.
А еще SECURITM это место для обмена опытом и наработками для служб безопасности.

CVE-2023-50387

PUBLISHED 04.11.2025

CNA: mitre

Обновлено: 10.06.2024
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.

БДУ ФСТЭК

Идентификатор Описание
BDU:2024-01359 Уязвимость компонента DNSSEC реализации протокола DNS сервера DNS BIND, позволяющая нарушителю вызвать отказ в обслуживании

НКЦКИ уязвимости

Бюллетени НКЦКИ - уязвимости ПО
Идентификатор Дата бюллетеня Описание
VULN:20240617-14 17.06.2024 Отказ в обслуживании в Azure Stack
VULN:20240619-35 19.06.2024 Отказ в обслуживании в Azure Stack

Доп. Информация

Product Status

n/a
Product: n/a
Vendor: n/a
Default status: Не определен
Версии:
Затронутые версии Статус
Наблюдалось в версии n/a affected
 

Ссылки

https://www.athene-center.de/aktuelles/key-trap
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
https://kb.isc.org/docs/cve-2023-50387
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/
https://news.ycombinator.com/item?id=39367411
https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/
https://www.isc.org/blogs/2024-bind-security-release/
https://news.ycombinator.com/item?id=39372384
https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387
https://access.redhat.com/security/cve/CVE-2023-50387
https://bugzilla.suse.com/show_bug.cgi?id=1219823
https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf
http://www.openwall.com/lists/oss-security/2024/02/16/2
http://www.openwall.com/lists/oss-security/2024/02/16/3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJS...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVD...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCF...
https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6C...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH275...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4M...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPE...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWF...
https://security.netapp.com/advisory/ntap-20240307-0007/
https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html

CVE Program Container

Обновлено: 04.11.2025
SSVC and KEV, plus CVSS and CWE if not provided by the CNA.

Ссылки

https://www.athene-center.de/aktuelles/key-trap
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
https://kb.isc.org/docs/cve-2023-50387
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/
https://news.ycombinator.com/item?id=39367411
https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/
https://www.isc.org/blogs/2024-bind-security-release/
https://news.ycombinator.com/item?id=39372384
https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387
https://access.redhat.com/security/cve/CVE-2023-50387
https://bugzilla.suse.com/show_bug.cgi?id=1219823
https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf
http://www.openwall.com/lists/oss-security/2024/02/16/2
http://www.openwall.com/lists/oss-security/2024/02/16/3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJS...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVD...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCF...
https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6C...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH275...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4M...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPE...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWF...
https://security.netapp.com/advisory/ntap-20240307-0007/
https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html
https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html
https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7R...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4...

CISA ADP Vulnrichment

Обновлено: 12.05.2025
Этот блок содержит дополнительную информацию, предоставленную программой CVE для этой уязвимости.

CVSS

Оценка Severity Версия Базовый вектор
7.5 HIGH 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation Automatable Technical Impact Версия Дата доступа
none yes partial 2.0.3 08.05.2025

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