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    43 vulnerabilities by nic

    CVE-2026-112112 (GCVE-0-2026-112112)

    Vulnerability from nvd – Published: 2026-10-18 23:01 – Updated: 2026-10-19 18:41
    VLAI
    Summary
    An IPv6 FlowSpec validation bypass in the CZ.NIC BIRD Internet Routing Daemon allows an established BGP peer to inject FlowSpec rules matching destinations outside the address space authorized by the unicast-route validation procedure. With validation enabled on the receiving flow6 channel, BIRD fails to reject a destination prefix component with a nonzero offset, contrary to RFC 8956 section 5. It validates a reconstructed prefix with zero-filled skipped bits, although the original FlowSpec component can match a broader set of IPv6 addresses. Given a suitable unicast route from the peer, the rule can pass validation and, where export policy permits, be propagated to downstream peers. Downstream enforcement may cause unauthorized traffic filtering or redirection.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-19 18:39 UTC
    CWE
    • CWE-1284 - Improper Validation of Specified Quantity in Input
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Impacted products
    Vendor Product Version
    nic BIRD Affected: 2.0.9 , ≤ 2.20.0 (semver)
    Affected: 3.0.0 , ≤ 3.4.0 (semver)
        cpe:2.3:a:nic:bird:*:*:*:*:*:*:*:*
        cpe:2.3:a:nic:bird:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-66374 (GCVE-0-2026-66374)

    Vulnerability from nvd – Published: 2026-07-25 00:28 – Updated: 2026-07-27 14:36
    VLAI
    Summary
    Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-27 14:35 UTC
    CWE
    • CWE-1284 - Improper Validation of Specified Quantity in Input
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Impacted products
    Vendor Product Version
    nic Knot Resolver Affected: 0 , < 6.4.1 (semver)
        cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-49943 (GCVE-0-2026-49943)

    Vulnerability from nvd – Published: 2026-06-02 16:16 – Updated: 2026-06-02 18:24
    VLAI
    Summary
    CZ.NIC BIRD Internet Routing Daemon through 2.19.0 contains a stack-based buffer overflow in the BGP AS_PATH mask matching implementation in nest/a-path.c. The as_path_match() function uses a fixed-size stack array of 2048 + 1 pm_pos entries, while parse_path() expands AS_PATH segments from a received BGP UPDATE without enforcing a corresponding capacity limit. When RFC 8654 BGP Extended Messages are enabled and a BIRD filter evaluates an AS path mask expression such as "bgp_path ~ [= ... =]", an established BGP peer can send a long AS_PATH containing more than 2048 expanded ASNs. This causes parse_path()/as_path_match() to write beyond the fixed stack buffer, resulting in a crash of the daemon. NOTE: reportedly, the Supplier's position is that a fix is not being prioritized because all network operators should already be rejecting routes with unusually long attributes.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-02 18:20 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Impacted products
    Vendor Product Version
    NIC BIRD Affected: 0 , ≤ 2.19.0 (semver)
        cpe:2.3:a:nic:bird:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2023-50387 (GCVE-0-2023-50387)

    Vulnerability from nvd – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20
    VLAI
    Summary
    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.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-05-08 17:27 UTC
    CWE
    • n/a
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    URL Tags
    https://www.athene-center.de/aktuelles/key-trap
    https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.1…
    https://kb.isc.org/docs/cve-2023-50387
    https://docs.powerdns.com/recursor/security-advis…
    https://www.theregister.com/2024/02/13/dnssec_vul…
    https://news.ycombinator.com/item?id=39367411
    https://www.securityweek.com/keytrap-dns-attack-c…
    https://www.isc.org/blogs/2024-bind-security-release/
    https://news.ycombinator.com/item?id=39372384
    https://gitlab.nic.cz/knot/knot-resolver/-/releas…
    https://lists.thekelleys.org.uk/pipermail/dnsmasq…
    https://msrc.microsoft.com/update-guide/vulnerabi…
    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/PD…
    http://www.openwall.com/lists/oss-security/2024/02/16/2 mailing-list
    http://www.openwall.com/lists/oss-security/2024/02/16/3 mailing-list
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.debian.org/debian-lts-announce/2024… mailing-list
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
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    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://security.netapp.com/advisory/ntap-2024030…
    https://lists.debian.org/debian-lts-announce/2024… mailing-list
    https://lists.debian.org/debian-lts-announce/2024…
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    CVE-2023-46317 (GCVE-0-2023-46317)

    Vulnerability from nvd – Published: 2023-10-22 00:00 – Updated: 2024-09-12 17:45
    VLAI
    Summary
    Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.
    Severity
    No CVSS data available.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-12 17:42 UTC
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Show details on NVD website

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    CVE-2023-26249 (GCVE-0-2023-26249)

    Vulnerability from nvd – Published: 2023-02-21 00:00 – Updated: 2025-03-14 18:32
    VLAI
    Summary
    Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-03-14 18:32 UTC
    CWE
    • n/a
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Show details on NVD website

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    CVE-2022-40188 (GCVE-0-2022-40188)

    Vulnerability from nvd – Published: 2022-09-23 00:00 – Updated: 2025-05-27 14:55
    VLAI
    Summary
    Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-05-27 14:55 UTC
    CWE
    • n/a
    • CWE-407 - Inefficient Algorithmic Complexity
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Show details on NVD website

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    CVE-2022-32983 (GCVE-0-2022-32983)

    Vulnerability from nvd – Published: 2022-06-20 15:05 – Updated: 2024-08-03 07:54
    VLAI
    Summary
    Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    Show details on NVD website

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    CVE-2021-40083 (GCVE-0-2021-40083)

    Vulnerability from nvd – Published: 2021-08-25 00:21 – Updated: 2024-08-04 02:27
    VLAI
    Summary
    Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    Show details on NVD website

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    CVE-2021-26928 (GCVE-0-2021-26928)

    Vulnerability from nvd – Published: 2021-06-04 20:13 – Updated: 2024-08-03 20:33 Disputed
    VLAI
    Summary
    BIRD through 2.0.7 does not provide functionality for password authentication of BGP peers. Because of this, products that use BIRD (which may, for example, include Tigera products in some configurations, as well as products of other vendors) may have been susceptible to route redirection for Denial of Service and/or Information Disclosure. NOTE: a researcher has asserted that the behavior is within Tigera’s area of responsibility; however, Tigera disagrees
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-05-01 15:15 UTC
    CWE
    • n/a
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    nic bird Affected: 2.0.7
        cpe:2.3:a:nic:bird:2.0.7:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-05-17 00:00
    Show details on NVD website

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    CVE-2018-1110 (GCVE-0-2018-1110)

    Vulnerability from nvd – Published: 2021-03-30 01:55 – Updated: 2024-08-05 03:51
    VLAI
    Summary
    A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service.
    Severity
    No CVSS data available.
    CWE
    Assigner
    redhat CNA under the redhat root
    CNA scorecard B 82/100 over 1036 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    n/a knot-resolver Affected: Knot Resolver 2.3.0
    Show details on NVD website

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    CVE-2021-3346 (GCVE-0-2021-3346)

    Vulnerability from nvd – Published: 2021-01-29 16:38 – Updated: 2024-08-03 16:53
    VLAI
    Summary
    Foris before 101.1.1, as used in Turris OS, lacks certain HTML escaping in the login template.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    Show details on NVD website

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    CVE-2020-12667 (GCVE-0-2020-12667)

    Vulnerability from nvd – Published: 2020-05-19 00:00 – Updated: 2024-08-04 12:04
    VLAI
    Summary
    Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-04-26 17:02 UTC
    CWE
    • n/a
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Impacted products
    Vendor Product Version
    nic knot_resolver Affected: -
        cpe:2.3:a:nic:knot_resolver:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2020-05-19 00:00
    Show details on NVD website

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    CVE-2019-19331 (GCVE-0-2019-19331)

    Vulnerability from nvd – Published: 2019-12-16 00:00 – Updated: 2024-08-05 02:16
    VLAI
    Summary
    knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB).
    CWE
    Assigner
    redhat CNA under the redhat root
    CNA scorecard B 82/100 over 1036 records in the last 180 days details
    Impacted products
    Vendor Product Version
    CZ.NIC knot-resolver Affected: 4.3.0
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-112112 (GCVE-0-2026-112112)

    Vulnerability from cvelistv5 – Published: 2026-10-18 23:01 – Updated: 2026-10-19 18:41
    VLAI
    Summary
    An IPv6 FlowSpec validation bypass in the CZ.NIC BIRD Internet Routing Daemon allows an established BGP peer to inject FlowSpec rules matching destinations outside the address space authorized by the unicast-route validation procedure. With validation enabled on the receiving flow6 channel, BIRD fails to reject a destination prefix component with a nonzero offset, contrary to RFC 8956 section 5. It validates a reconstructed prefix with zero-filled skipped bits, although the original FlowSpec component can match a broader set of IPv6 addresses. Given a suitable unicast route from the peer, the rule can pass validation and, where export policy permits, be propagated to downstream peers. Downstream enforcement may cause unauthorized traffic filtering or redirection.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-19 18:39 UTC
    CWE
    • CWE-1284 - Improper Validation of Specified Quantity in Input
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Impacted products
    Vendor Product Version
    nic BIRD Affected: 2.0.9 , ≤ 2.20.0 (semver)
    Affected: 3.0.0 , ≤ 3.4.0 (semver)
        cpe:2.3:a:nic:bird:*:*:*:*:*:*:*:*
        cpe:2.3:a:nic:bird:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-66374 (GCVE-0-2026-66374)

    Vulnerability from cvelistv5 – Published: 2026-07-25 00:28 – Updated: 2026-07-27 14:36
    VLAI
    Summary
    Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-27 14:35 UTC
    CWE
    • CWE-1284 - Improper Validation of Specified Quantity in Input
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Impacted products
    Vendor Product Version
    nic Knot Resolver Affected: 0 , < 6.4.1 (semver)
        cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-49943 (GCVE-0-2026-49943)

    Vulnerability from cvelistv5 – Published: 2026-06-02 16:16 – Updated: 2026-06-02 18:24
    VLAI
    Summary
    CZ.NIC BIRD Internet Routing Daemon through 2.19.0 contains a stack-based buffer overflow in the BGP AS_PATH mask matching implementation in nest/a-path.c. The as_path_match() function uses a fixed-size stack array of 2048 + 1 pm_pos entries, while parse_path() expands AS_PATH segments from a received BGP UPDATE without enforcing a corresponding capacity limit. When RFC 8654 BGP Extended Messages are enabled and a BIRD filter evaluates an AS path mask expression such as "bgp_path ~ [= ... =]", an established BGP peer can send a long AS_PATH containing more than 2048 expanded ASNs. This causes parse_path()/as_path_match() to write beyond the fixed stack buffer, resulting in a crash of the daemon. NOTE: reportedly, the Supplier's position is that a fix is not being prioritized because all network operators should already be rejecting routes with unusually long attributes.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-02 18:20 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Impacted products
    Vendor Product Version
    NIC BIRD Affected: 0 , ≤ 2.19.0 (semver)
        cpe:2.3:a:nic:bird:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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        "assignerShortName": "mitre",
        "cveId": "CVE-2026-49943",
        "datePublished": "2026-06-02T16:16:52.033Z",
        "dateReserved": "2026-06-02T16:16:51.394Z",
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    CVE-2023-50387 (GCVE-0-2023-50387)

    Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20
    VLAI
    Summary
    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.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-05-08 17:27 UTC
    CWE
    • n/a
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    URL Tags
    https://www.athene-center.de/aktuelles/key-trap
    https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.1…
    https://kb.isc.org/docs/cve-2023-50387
    https://docs.powerdns.com/recursor/security-advis…
    https://www.theregister.com/2024/02/13/dnssec_vul…
    https://news.ycombinator.com/item?id=39367411
    https://www.securityweek.com/keytrap-dns-attack-c…
    https://www.isc.org/blogs/2024-bind-security-release/
    https://news.ycombinator.com/item?id=39372384
    https://gitlab.nic.cz/knot/knot-resolver/-/releas…
    https://lists.thekelleys.org.uk/pipermail/dnsmasq…
    https://msrc.microsoft.com/update-guide/vulnerabi…
    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/PD…
    http://www.openwall.com/lists/oss-security/2024/02/16/2 mailing-list
    http://www.openwall.com/lists/oss-security/2024/02/16/3 mailing-list
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.debian.org/debian-lts-announce/2024… mailing-list
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
    https://security.netapp.com/advisory/ntap-2024030…
    https://lists.debian.org/debian-lts-announce/2024… mailing-list
    https://lists.debian.org/debian-lts-announce/2024…
    https://lists.debian.org/debian-lts-announce/2024…
    https://lists.fedoraproject.org/archives/list/pac…
    https://lists.fedoraproject.org/archives/list/pac…
    https://lists.fedoraproject.org/archives/list/pac…
    https://lists.fedoraproject.org/archives/list/pac…
    Show details on NVD website

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    CVE-2023-46317 (GCVE-0-2023-46317)

    Vulnerability from cvelistv5 – Published: 2023-10-22 00:00 – Updated: 2024-09-12 17:45
    VLAI
    Summary
    Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.
    Severity
    No CVSS data available.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-12 17:42 UTC
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Show details on NVD website

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    CVE-2023-26249 (GCVE-0-2023-26249)

    Vulnerability from cvelistv5 – Published: 2023-02-21 00:00 – Updated: 2025-03-14 18:32
    VLAI
    Summary
    Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-03-14 18:32 UTC
    CWE
    • n/a
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Show details on NVD website

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    CVE-2022-40188 (GCVE-0-2022-40188)

    Vulnerability from cvelistv5 – Published: 2022-09-23 00:00 – Updated: 2025-05-27 14:55
    VLAI
    Summary
    Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-05-27 14:55 UTC
    CWE
    • n/a
    • CWE-407 - Inefficient Algorithmic Complexity
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Show details on NVD website

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    CVE-2022-32983 (GCVE-0-2022-32983)

    Vulnerability from cvelistv5 – Published: 2022-06-20 15:05 – Updated: 2024-08-03 07:54
    VLAI
    Summary
    Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    Show details on NVD website

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    CVE-2021-40083 (GCVE-0-2021-40083)

    Vulnerability from cvelistv5 – Published: 2021-08-25 00:21 – Updated: 2024-08-04 02:27
    VLAI
    Summary
    Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    Show details on NVD website

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    CVE-2021-26928 (GCVE-0-2021-26928)

    Vulnerability from cvelistv5 – Published: 2021-06-04 20:13 – Updated: 2024-08-03 20:33 Disputed
    VLAI
    Summary
    BIRD through 2.0.7 does not provide functionality for password authentication of BGP peers. Because of this, products that use BIRD (which may, for example, include Tigera products in some configurations, as well as products of other vendors) may have been susceptible to route redirection for Denial of Service and/or Information Disclosure. NOTE: a researcher has asserted that the behavior is within Tigera’s area of responsibility; however, Tigera disagrees
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-05-01 15:15 UTC
    CWE
    • n/a
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    nic bird Affected: 2.0.7
        cpe:2.3:a:nic:bird:2.0.7:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-05-17 00:00
    Show details on NVD website

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    CVE-2018-1110 (GCVE-0-2018-1110)

    Vulnerability from cvelistv5 – Published: 2021-03-30 01:55 – Updated: 2024-08-05 03:51
    VLAI
    Summary
    A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service.
    Severity
    No CVSS data available.
    CWE
    Assigner
    redhat CNA under the redhat root
    CNA scorecard B 82/100 over 1036 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    n/a knot-resolver Affected: Knot Resolver 2.3.0
    Show details on NVD website

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    CVE-2021-3346 (GCVE-0-2021-3346)

    Vulnerability from cvelistv5 – Published: 2021-01-29 16:38 – Updated: 2024-08-03 16:53
    VLAI
    Summary
    Foris before 101.1.1, as used in Turris OS, lacks certain HTML escaping in the login template.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    References
    Show details on NVD website

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    CVE-2020-12667 (GCVE-0-2020-12667)

    Vulnerability from cvelistv5 – Published: 2020-05-19 00:00 – Updated: 2024-08-04 12:04
    VLAI
    Summary
    Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-04-26 17:02 UTC
    CWE
    • n/a
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Impacted products
    Vendor Product Version
    nic knot_resolver Affected: -
        cpe:2.3:a:nic:knot_resolver:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2020-05-19 00:00
    Show details on NVD website

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    CVE-2019-19331 (GCVE-0-2019-19331)

    Vulnerability from cvelistv5 – Published: 2019-12-16 00:00 – Updated: 2024-08-05 02:16
    VLAI
    Summary
    knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB).
    CWE
    Assigner
    redhat CNA under the redhat root
    CNA scorecard B 82/100 over 1036 records in the last 180 days details
    Impacted products
    Vendor Product Version
    CZ.NIC knot-resolver Affected: 4.3.0
    Create a notification for this product.
    Show details on NVD website

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    CVE-2013-5661 (GCVE-0-2013-5661)

    Vulnerability from cvelistv5 – Published: 2019-11-05 18:14 – Updated: 2024-08-06 17:15
    VLAI
    Summary
    Cache Poisoning issue exists in DNS Response Rate Limiting.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    mitre CNA under the mitre root
    CNA scorecard E 28/100 over 2324 records in the last 180 days details
    Date Public
    2013-12-06 00:00
    Show details on NVD website

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    VAR-201803-0062

    Vulnerability from variot - Updated: 2023-12-18 13:24

    Knot DNS before 1.5.2 allows remote attackers to cause a denial of service (application crash) via a crafted DNS message. Knot DNS Contains an input validation vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. Knot DNS is a DNS server. Knot DNS is prone to an unspecified denial-of-service vulnerability. Remote attackers can exploit this issue to cause denial-of-service conditions for legitimate users

    Show details on source website

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