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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:249728
[Rus]
Version
7
Class
vulnerability
ALTXid
479871
Language
English
Severity
High
Title
Red Hat -- vulnerability in unbound (CVE-2023-50387)
Description
The vulnerability was found in unbound.
Family
unix
Platform
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.6
Red Hat Enterprise Linux 8.8
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 9.0
Red Hat Enterprise Linux 9.2
Product
Bind
bind9.16
DHCP
dnsmasq
unbound
Reference
VENDOR: RHSA-2024:1804
VENDOR: RHSA-2024:1804
Id:
RHSA-2024:1804
Reference:
https://access.redhat.com/errata/RHSA-2024:1804
VENDOR: RHSA-2024:1803
VENDOR: RHSA-2024:1803
Id:
RHSA-2024:1803
Reference:
https://access.redhat.com/errata/RHSA-2024:1803
VENDOR: RHSA-2024:1801
VENDOR: RHSA-2024:1801
Id:
RHSA-2024:1801
Reference:
https://access.redhat.com/errata/RHSA-2024:1801
VENDOR: RHSA-2024:1800
VENDOR: RHSA-2024:1800
Id:
RHSA-2024:1800
Reference:
https://access.redhat.com/errata/RHSA-2024:1800
VENDOR: RHSA-2024:1782
VENDOR: RHSA-2024:1782
Id:
RHSA-2024:1782
Reference:
https://access.redhat.com/errata/RHSA-2024:1782
VENDOR: RHSA-2024:1789
VENDOR: RHSA-2024:1789
Id:
RHSA-2024:1789
Reference:
https://access.redhat.com/errata/RHSA-2024:1789
VENDOR: RHSA-2024:1781
VENDOR: RHSA-2024:1781
Id:
RHSA-2024:1781
Reference:
https://access.redhat.com/errata/RHSA-2024:1781
VENDOR: RHSA-2024:1647
VENDOR: RHSA-2024:1647
Id:
RHSA-2024:1647
Reference:
https://access.redhat.com/errata/RHSA-2024:1647
VENDOR: RHSA-2024:1648
VENDOR: RHSA-2024:1648
Id:
RHSA-2024:1648
Reference:
https://access.redhat.com/errata/RHSA-2024:1648
VENDOR: RHSA-2024:1543
VENDOR: RHSA-2024:1543
Id:
RHSA-2024:1543
Reference:
https://access.redhat.com/errata/RHSA-2024:1543
VENDOR: RHSA-2024:1544
VENDOR: RHSA-2024:1544
Id:
RHSA-2024:1544
Reference:
https://access.redhat.com/errata/RHSA-2024:1544
VENDOR: RHSA-2024:1545
VENDOR: RHSA-2024:1545
Id:
RHSA-2024:1545
Reference:
https://access.redhat.com/errata/RHSA-2024:1545
VENDOR: RHSA-2024:1522
VENDOR: RHSA-2024:1522
Id:
RHSA-2024:1522
Reference:
https://access.redhat.com/errata/RHSA-2024:1522
VENDOR: RHSA-2024:1334
VENDOR: RHSA-2024:1334
Id:
RHSA-2024:1334
Reference:
https://access.redhat.com/errata/RHSA-2024:1334
VENDOR: RHSA-2024:1335
VENDOR: RHSA-2024:1335
Id:
RHSA-2024:1335
Reference:
https://access.redhat.com/errata/RHSA-2024:1335
VENDOR: RHSA-2024:0965
VENDOR: RHSA-2024:0965
Id:
RHSA-2024:0965
Reference:
https://access.redhat.com/errata/RHSA-2024:0965
CVE: CVE-2023-50387
CVE: CVE-2023-50387
Id:
CVE-2023-50387
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50387
Comment
: 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.
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
770 (Allocation of Resources Without Limits or Throttling)
References:
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 ()
[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities ()
[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities ()
FEDORA-2024-2e26eccfcb ()
FEDORA-2024-e24211eff0 ()
FEDORA-2024-21310568fa ()
[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update ()
FEDORA-2024-b0f9656a76 ()
FEDORA-2024-4e36df9dfd ()
FEDORA-2024-499b9be35f ()
FEDORA-2024-c36c448396 ()
FEDORA-2024-c967c7d287 ()
FEDORA-2024-e00eceb11c ()
FEDORA-2024-fae88b73eb ()
https://security.netapp.com/advisory/ntap-20240307-0007/ ()
VENDOR: RHSA-2024:0982
VENDOR: RHSA-2024:0982
Id:
RHSA-2024:0982
Reference:
https://access.redhat.com/errata/RHSA-2024:0982
VENDOR: RHSA-2024:0981
VENDOR: RHSA-2024:0981
Id:
RHSA-2024:0981
Reference:
https://access.redhat.com/errata/RHSA-2024:0981
VENDOR: RHSA-2024:0977
VENDOR: RHSA-2024:0977
Id:
RHSA-2024:0977
Reference:
https://access.redhat.com/errata/RHSA-2024:0977
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