CVE-2019-10190
published 2019-07-16CVE-2019-10190: A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC…
PriorityP345high7.5CVSS 3.1
AVNACLPRNUINSUCNIHAN
EPSS
1.99%
78.2th percentile
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cz.nic | knot-resolver | — | — |
| cz.nic | knot-resolver | >= 0 < 5.0.1-1 | 5.0.1-1 |
| cz.nic | knot-resolver | >= 0 < 5.0.1-1 | 5.0.1-1 |
| cz.nic | knot-resolver | >= 0 < 5.0.1-1 | 5.0.1-1 |
| cz.nic | knot-resolver | >= 0 < 5.0.1-1 | 5.0.1-1 |
| cz.nic | knot-resolver | >= 0 < 3.2.1-3ubuntu2.2 | 3.2.1-3ubuntu2.2 |
| debian | knot-resolver | < knot-resolver 5.0.1-1 (bookworm) | knot-resolver 5.0.1-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| nic | knot_resolver | <= 3.2.0 | — |
| nic | knot_resolver | >= 4.0.0 < 4.1.0 | 4.1.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvdv3.05.4MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
osv7.5HIGH
vendor_debian7.5HIGH
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OSV
knot-resolver vulnerabilities
osv·2024-10-01·CVSS 7.5
CVE-2019-10190 [HIGH] knot-resolver vulnerabilities
knot-resolver vulnerabilities
Vladimír Čunát discovered that Knot Resolver incorrectly handled input
during DNSSEC validation. A remote attacker could possibly use this issue
to bypass certain validations. (CVE-2019-10190)
Vladimír Čunát discovered that Knot Resolver incorrectly handled input
during DNSSEC validation. A remote attacker could possibly use this issue
to downgrade DNSSEC-secure domains to a DNSSEC-insecure state, resulting
in a domain hijacking attack. (CVE-2019-10191)
Vladimír Čunát discovered that Knot Resolver incorrectly handled certain
DNS replies with many resource records. An attacker could possibly use
this issue to consume system resources, resulting in a denial of service.
(CVE-2019-19331)
Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Knot
Reso
GHSA
GHSA-5pqr-9wpj-5m82: A vulnerability was discovered in DNS resolver component of knot resolver through version 3
ghsa_unreviewed·2022-05-24·CVSS 7.5
CVE-2019-10190 [HIGH] CWE-20 GHSA-5pqr-9wpj-5m82: A vulnerability was discovered in DNS resolver component of knot resolver through version 3
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.
OSV
CVE-2019-10190: A vulnerability was discovered in DNS resolver component of knot resolver through version 3
osv·2019-07-16·CVSS 7.5
CVE-2019-10190 [HIGH] CVE-2019-10190: A vulnerability was discovered in DNS resolver component of knot resolver through version 3
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.
Debian
CVE-2019-10190: knot-resolver - A vulnerability was discovered in DNS resolver component of knot resolver throug...
vendor_debian·2019·CVSS 7.5
CVE-2019-10190 [HIGH] CVE-2019-10190: knot-resolver - A vulnerability was discovered in DNS resolver component of knot resolver throug...
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.
Scope: local
bookworm: resolved (fixed in 5.0.1-1)
bullseye: resolved (fixed in 5.0.1-1)
forky: resolved (fixed in 5.0.1-1)
sid: resolved (fixed in 5.0.1-1)
trixie: resolved (fixed in 5.0.1-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation [fedora-all]
bugzilla·2019-07-15·CVSS 7.5
CVE-2019-10190 [HIGH] CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation [fedora-all]
CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit mess
Bugzilla
CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation [epel-7]
bugzilla·2019-07-15·CVSS 7.5
CVE-2019-10190 [HIGH] CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation [epel-7]
CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-7.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
D
Bugzilla
CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation
bugzilla·2019-07-05·CVSS 7.5
CVE-2019-10190 [HIGH] CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation
CVE-2019-10190 knot-resolver: improper input validation in DNS resolver allows remote attacker to bypass DNSSEC validation
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.0.0 which allows remote attacker to bypass DNSSEC validation for non-existence answer. Where NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see the other CVE.
Discussion:
Acknowledgments:
Name: Petr Špaček (CZ.NIC)
Upstream: Vladimír Čunát (CZ.NIC)
---
Created knot-resolver tracking bugs for this issue:
Affects: epel-7 [bug 1729825]
Affects: fedora-all [bug 1729824]
---
This CVE Bugzilla entry is for community support inform
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10190https://lists.debian.org/debian-lts-announce/2024/04/msg00017.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMSSWBHINIX4WE6UDXWM66L7JYEK6XS6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6EESQNAP5X5/https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10190https://lists.debian.org/debian-lts-announce/2024/04/msg00017.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMSSWBHINIX4WE6UDXWM66L7JYEK6XS6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6EESQNAP5X5/https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html
2019-07-16
Published