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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:reply_query() if the reply destination address/port is used by the pending forwarded queries. However, it does not use the address/port to retrieve the exact forwarded query, substantially reducing the number of attempts an attacker on the network would have to perform to forge a reply and get it accepted by dnsmasq. This issue contrasts with RFC5452, which specifies a query's attributes that all must be used to match a reply. This flaw allows an attacker to perform a DNS Cache Poisoning attack. If chained with CVE-2020-25685 or CVE-2020-25686, the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.
Metrics
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vector strings. CVSS information contributed by other sources is also
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CVE Modified by Red Hat, Inc.11/06/2023 10:20:22 PM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/ [No types assigned]
Added
Reference
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/ [No types assigned]
Removed
Reference
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/
Removed
Reference
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/
OR
*cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.21 up to (excluding) 4.21.14m
*cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.22 up to (excluding) 4.22.9m
*cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.23 up to (excluding) 4.23.7m
*cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.24 up to (excluding) 4.24.5m
*cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.25
Changed
Reference Type
https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61 No Types Assigned
https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61 Third Party Advisory
OR
*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
OR
*cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/ Mailing List, Third Party Advisory
CVE Modified by Red Hat, Inc.2/19/2021 10:15:12 PM
OR
*cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* versions up to (excluding) 2.83
Added
CPE Configuration
OR
*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=1889686 No Types Assigned
https://bugzilla.redhat.com/show_bug.cgi?id=1889686 Issue Tracking, Patch, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/ Mailing List, Third Party Advisory
Changed
Reference Type
https://security.gentoo.org/glsa/202101-17 No Types Assigned
https://security.gentoo.org/glsa/202101-17 Third Party Advisory
Changed
Reference Type
https://www.jsof-tech.com/disclosures/dnspooq/ No Types Assigned
https://www.jsof-tech.com/disclosures/dnspooq/ Third Party Advisory
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