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18 vulnerabilities found for quiche by cloudflare

FKIE_CVE-2025-7054

Vulnerability from fkie_nvd - Published: 2025-08-07 16:15 - Updated: 2025-08-14 19:58
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Summary
Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRE_CONNECTION_ID frames. QUIC connections possess a set of connection identifiers (IDs); see Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-5.1 . Once the QUIC handshake completes, a local endpoint is responsible for issuing and retiring Connection IDs that are used by the remote peer to populate the Destination Connection ID field in packets sent from remote to local. Each Connection ID has a sequence number to ensure synchronization between peers. An unauthenticated remote attacker can exploit this vulnerability by first completing a handshake and then sending a specially-crafted set of frames that trigger a connection ID retirement in the victim. When the victim attempts to send a packet containing RETIRE_CONNECTION_ID frames, Section 19.16 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-19.6 requires that the sequence number of the retired connection ID must not be the same as the sequence number of the connection ID used by the packet. In other words, a packet cannot contain a frame that retires itself. In scenarios such as path migration, it is possible for there to be multiple active paths with different active connection IDs that could be used to retire each other. The exploit triggered an unintentional behaviour of a quiche design feature that supports retirement across paths while maintaining full connection ID synchronization, leading to an infinite loop.This issue affects quiche: from 0.15.0 before 0.24.5.
References
cna@cloudflare.comhttps://github.com/cloudflare/quiche/security/advisories/GHSA-m3hh-f9gh-74c2Third Party Advisory
Impacted products
Vendor Product Version
cloudflare quiche *
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRE_CONNECTION_ID frames.\n\nQUIC connections possess a set of connection identifiers (IDs); see  Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-5.1 . Once the QUIC handshake completes, a local endpoint is responsible for issuing and retiring Connection IDs that are used by the remote peer to populate the Destination Connection ID field in packets sent from remote to local. Each Connection ID has a sequence number to ensure synchronization between peers.\n\nAn unauthenticated remote attacker can exploit this vulnerability by first completing a handshake and then sending a specially-crafted set of frames that trigger a connection ID retirement in the victim. When the victim attempts to send a packet containing RETIRE_CONNECTION_ID frames,  Section 19.16 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-19.6  requires that the sequence number of the retired connection ID must not be the same as the sequence number of the connection ID used by the packet. In other words, a packet cannot contain a frame that retires itself. In scenarios such as path migration, it is possible for there to be multiple active paths with different active connection IDs that could be used to retire each other. The exploit triggered an unintentional behaviour of a quiche design feature that supports retirement across paths while maintaining full connection ID synchronization, leading to an infinite loop.This issue affects quiche: from 0.15.0 before 0.24.5."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 que Cloudflare Quiche era vulnerable a un bucle infinito al enviar paquetes que conten\u00edan tramas RETIRE_CONNECTION_ID. Las conexiones QUIC poseen un conjunto de identificadores de conexi\u00f3n (ID); consulte la Secci\u00f3n 5.1 de RFC 9000 (https://datatracker.ietf.org/doc/html/rfc9000#section-5.1). Una vez completado el protocolo de enlace QUIC, un endpoint local se encarga de emitir y retirar los ID de conexi\u00f3n que utiliza el punto remoto para rellenar el campo ID de conexi\u00f3n de destino en los paquetes enviados desde el punto remoto al local. Cada ID de conexi\u00f3n tiene un n\u00famero de secuencia para garantizar la sincronizaci\u00f3n entre los puntos. Un atacante remoto no autenticado puede explotar esta vulnerabilidad completando primero un protocolo de enlace y luego enviando un conjunto de tramas especialmente manipuladas que desencadenan el retiro del ID de conexi\u00f3n en la v\u00edctima. Cuando la v\u00edctima intenta enviar un paquete que contiene tramas RETIRE_CONNECTION_ID, la Secci\u00f3n 19.16 de RFC 9000 (https://datatracker.ietf.org/doc/html/rfc9000#section-19.6) exige que el n\u00famero de secuencia del ID de conexi\u00f3n retirado no coincida con el del ID de conexi\u00f3n utilizado por el paquete. En otras palabras, un paquete no puede contener una trama que se retire a s\u00ed misma. En escenarios como la migraci\u00f3n de rutas, es posible que existan m\u00faltiples rutas activas con diferentes ID de conexi\u00f3n activos que podr\u00edan utilizarse para retirarse mutuamente. El exploit desencaden\u00f3 un comportamiento involuntario de una caracter\u00edstica de dise\u00f1o de quiche que permite el retiro entre rutas manteniendo la sincronizaci\u00f3n completa del ID de conexi\u00f3n, lo que provoc\u00f3 un bucle infinito. Este problema afecta a quiche desde la versi\u00f3n 0.15.0 hasta la 0.24.5."
    }
  ],
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  "lastModified": "2025-08-14T19:58:57.683",
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          "vulnerabilityResponseEffort": "NOT_DEFINED"
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  "references": [
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      "source": "cna@cloudflare.com",
      "tags": [
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      "url": "https://github.com/cloudflare/quiche/security/advisories/GHSA-m3hh-f9gh-74c2"
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          "value": "CWE-835"
        }
      ],
      "source": "cna@cloudflare.com",
      "type": "Secondary"
    }
  ]
}

FKIE_CVE-2025-4821

Vulnerability from fkie_nvd - Published: 2025-06-18 16:15 - Updated: 2025-11-06 22:22
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support. An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating a congestion-controlled data transfer towards itself. Then, it could manipulate the victim's congestion control state by sending ACK frames covering a large range of packet numbers (including packet numbers that had never been sent); see RFC 9000 Section 19.3. The victim could grow the congestion window beyond typical expectations and allow more bytes in flight than the path might really support. In extreme cases, the window might grow beyond the limit of the internal variable's type, leading to an overflow panic. Patches quiche 0.24.4 is the earliest version containing the fix for this issue.
References
cna@cloudflare.comhttps://github.com/cloudflare/quiche/security/advisories/GHSA-6m38-4r9r-5c4mVendor Advisory
Impacted products
Vendor Product Version
cloudflare quiche *
To clipboard 

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    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 que Quiche de Cloudflare era vulnerable a un crecimiento incorrecto de la ventana de congesti\u00f3n, lo que podr\u00eda provocar el env\u00edo de datos a una velocidad superior a la que la ruta realmente admite. Un atacante remoto no autenticado puede explotar esta vulnerabilidad completando primero un protocolo de enlace e iniciando una transferencia de datos controlada por congesti\u00f3n hacia s\u00ed mismo. Posteriormente, podr\u00eda manipular el estado de control de congesti\u00f3n de la v\u00edctima enviando tramas ACK que abarcan una amplia gama de n\u00fameros de paquetes (incluidos los que nunca se enviaron); consulte la secci\u00f3n 19.3 de RFC 9000. La v\u00edctima podr\u00eda ampliar la ventana de congesti\u00f3n m\u00e1s all\u00e1 de lo esperado y permitir m\u00e1s bytes en tr\u00e1nsito de los que la ruta realmente admite. En casos extremos, la ventana podr\u00eda sobrepasar el l\u00edmite del tipo de la variable interna, lo que provocar\u00eda un p\u00e1nico por desbordamiento. Parches: Quiche 0.24.4 es la versi\u00f3n m\u00e1s antigua que contiene la soluci\u00f3n para este problema."
    }
  ],
  "id": "CVE-2025-4821",
  "lastModified": "2025-11-06T22:22:53.050",
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FKIE_CVE-2025-4820

Vulnerability from fkie_nvd - Published: 2025-06-18 16:15 - Updated: 2025-11-06 22:21
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support. An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating a congestion-controlled data transfer towards itself. Then, it could manipulate the victim's congestion control state by sending ACK frames exercising an opportunistic ACK attack; see RFC 9000 Section 21.4. The victim could grow the congestion window beyond typical expectations and allow more bytes in flight than the path might really support. Patches quiche 0.24.4 is the earliest version containing the fix for this issue.
References
cna@cloudflare.comhttps://github.com/cloudflare/quiche/security/advisories/GHSA-2v9p-3p3h-w56jVendor Advisory
Impacted products
Vendor Product Version
cloudflare quiche *
To clipboard 

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FKIE_CVE-2024-1765

Vulnerability from fkie_nvd - Published: 2024-03-12 18:15 - Updated: 2025-08-06 14:30
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client. A remote attacker could take advantage of this vulnerability by repeatedly sending an unlimited number of 1-RTT CRYPTO frames after previously completing the QUIC handshake. Exploitation was possible for the duration of the connection which could be extended by the attacker.  quiche 0.19.2 and 0.20.1 are the earliest versions containing the fix for this issue.
References
cna@cloudflare.comhttps://github.com/cloudflare/quiche/security/advisories/GHSA-78wx-jg4j-5j6gVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/cloudflare/quiche/security/advisories/GHSA-78wx-jg4j-5j6gVendor Advisory
Impacted products
Vendor Product Version
cloudflare quiche *
cloudflare quiche 0.20.0
To clipboard 

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    },
    {
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  ],
  "id": "CVE-2024-1765",
  "lastModified": "2025-08-06T14:30:33.087",
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}

FKIE_CVE-2024-1410

Vulnerability from fkie_nvd - Published: 2024-03-12 18:15 - Updated: 2025-08-06 14:28
Severity ?
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
Cloudflare quiche was discovered to be vulnerable to unbounded storage of information related to connection ID retirement, which could lead to excessive resource consumption. Each QUIC connection possesses a set of connection Identifiers (IDs); see RFC 9000 Section 5.1 https://datatracker.ietf.org/doc/html/rfc9000#section-5.1 . Endpoints declare the number of active connection IDs they are willing to support using the active_connection_id_limit transport parameter. The peer can create new IDs using a NEW_CONNECTION_ID frame but must stay within the active ID limit. This is done by retirement of old IDs, the endpoint sends NEW_CONNECTION_ID includes a value in the retire_prior_to field, which elicits a RETIRE_CONNECTION_ID frame as confirmation. An unauthenticated remote attacker can exploit the vulnerability by sending NEW_CONNECTION_ID frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that RETIRE_CONNECTION_ID frames can only be sent at a slower rate than they are received, leading to storage of information related to connection IDs in an unbounded queue. Quiche versions 0.19.2 and 0.20.1 are the earliest to address this problem. There is no workaround for affected versions.
References
cna@cloudflare.comhttps://github.com/cloudflare/quiche/security/advisories/GHSA-xhg9-xwch-vr7xVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/cloudflare/quiche/security/advisories/GHSA-xhg9-xwch-vr7xVendor Advisory
Impacted products
Vendor Product Version
cloudflare quiche *
cloudflare quiche 0.20.0
To clipboard 

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FKIE_CVE-2023-6193

Vulnerability from fkie_nvd - Published: 2023-12-12 14:15 - Updated: 2024-11-21 08:43
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
quiche v. 0.15.0 through 0.19.0 was discovered to be vulnerable to unbounded queuing of path validation messages, which could lead to excessive resource consumption. QUIC path validation (RFC 9000 Section 8.2) requires that the recipient of a PATH_CHALLENGE frame responds by sending a PATH_RESPONSE. An unauthenticated remote attacker can exploit the vulnerability by sending PATH_CHALLENGE frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that PATH_RESPONSE frames can only be sent at the slower rate than they are received; leading to storage of path validation data in an unbounded queue. Quiche versions greater than 0.19.0 address this problem.
References
cna@cloudflare.comhttps://datatracker.ietf.org/doc/html/rfc9000#section-8.2Technical Description
cna@cloudflare.comhttps://github.com/cloudflare/quiche/security/advisories/GHSA-w3vp-jw9m-f9pmVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://datatracker.ietf.org/doc/html/rfc9000#section-8.2Technical Description
af854a3a-2127-422b-91ae-364da2661108https://github.com/cloudflare/quiche/security/advisories/GHSA-w3vp-jw9m-f9pmVendor Advisory
Impacted products
Vendor Product Version
cloudflare quiche *
To clipboard 

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CVE-2025-7054 (GCVE-0-2025-7054)

Vulnerability from cvelistv5 – Published: 2025-08-07 15:19 – Updated: 2025-08-07 15:52
VLAI?
Summary
Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRE_CONNECTION_ID frames. QUIC connections possess a set of connection identifiers (IDs); see Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-5.1 . Once the QUIC handshake completes, a local endpoint is responsible for issuing and retiring Connection IDs that are used by the remote peer to populate the Destination Connection ID field in packets sent from remote to local. Each Connection ID has a sequence number to ensure synchronization between peers. An unauthenticated remote attacker can exploit this vulnerability by first completing a handshake and then sending a specially-crafted set of frames that trigger a connection ID retirement in the victim. When the victim attempts to send a packet containing RETIRE_CONNECTION_ID frames, Section 19.16 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-19.6 requires that the sequence number of the retired connection ID must not be the same as the sequence number of the connection ID used by the packet. In other words, a packet cannot contain a frame that retires itself. In scenarios such as path migration, it is possible for there to be multiple active paths with different active connection IDs that could be used to retire each other. The exploit triggered an unintentional behaviour of a quiche design feature that supports retirement across paths while maintaining full connection ID synchronization, leading to an infinite loop.This issue affects quiche: from 0.15.0 before 0.24.5.
Severity ?
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: 0.15.0 , < 0.24.5 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-4821 (GCVE-0-2025-4821)

Vulnerability from cvelistv5 – Published: 2025-06-18 15:47 – Updated: 2025-06-18 18:29
VLAI?
Summary
Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support. An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating a congestion-controlled data transfer towards itself. Then, it could manipulate the victim's congestion control state by sending ACK frames covering a large range of packet numbers (including packet numbers that had never been sent); see RFC 9000 Section 19.3. The victim could grow the congestion window beyond typical expectations and allow more bytes in flight than the path might really support. In extreme cases, the window might grow beyond the limit of the internal variable's type, leading to an overflow panic. Patches quiche 0.24.4 is the earliest version containing the fix for this issue.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: <0.24.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-4820 (GCVE-0-2025-4820)

Vulnerability from cvelistv5 – Published: 2025-06-18 15:45 – Updated: 2025-06-18 18:27
VLAI?
Summary
Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support. An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating a congestion-controlled data transfer towards itself. Then, it could manipulate the victim's congestion control state by sending ACK frames exercising an opportunistic ACK attack; see RFC 9000 Section 21.4. The victim could grow the congestion window beyond typical expectations and allow more bytes in flight than the path might really support. Patches quiche 0.24.4 is the earliest version containing the fix for this issue.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: <0.24.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-1410 (GCVE-0-2024-1410)

Vulnerability from cvelistv5 – Published: 2024-03-12 18:06 – Updated: 2024-08-01 18:40
VLAI?
Summary
Cloudflare quiche was discovered to be vulnerable to unbounded storage of information related to connection ID retirement, which could lead to excessive resource consumption. Each QUIC connection possesses a set of connection Identifiers (IDs); see RFC 9000 Section 5.1 https://datatracker.ietf.org/doc/html/rfc9000#section-5.1 . Endpoints declare the number of active connection IDs they are willing to support using the active_connection_id_limit transport parameter. The peer can create new IDs using a NEW_CONNECTION_ID frame but must stay within the active ID limit. This is done by retirement of old IDs, the endpoint sends NEW_CONNECTION_ID includes a value in the retire_prior_to field, which elicits a RETIRE_CONNECTION_ID frame as confirmation. An unauthenticated remote attacker can exploit the vulnerability by sending NEW_CONNECTION_ID frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that RETIRE_CONNECTION_ID frames can only be sent at a slower rate than they are received, leading to storage of information related to connection IDs in an unbounded queue. Quiche versions 0.19.2 and 0.20.1 are the earliest to address this problem. There is no workaround for affected versions.
Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: 0.15.0 , < <0.19.2 (semver)
Affected: 0.20.0 , < <0.20.1 (semver)
Create a notification for this product.
Credits
Marten Seeman (@marten-seemann)
Show details on NVD website
To clipboard 

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CVE-2024-1765 (GCVE-0-2024-1765)

Vulnerability from cvelistv5 – Published: 2024-03-12 18:04 – Updated: 2024-08-01 18:48
VLAI?
Summary
Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client. A remote attacker could take advantage of this vulnerability by repeatedly sending an unlimited number of 1-RTT CRYPTO frames after previously completing the QUIC handshake. Exploitation was possible for the duration of the connection which could be extended by the attacker.  quiche 0.19.2 and 0.20.1 are the earliest versions containing the fix for this issue.
Severity ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: 0.15.0 , ≤ <0.19.1 (semver)
Affected: 0.20.0 , < <0.20.1 (semver)
Create a notification for this product.
Credits
Marten Seeman (@marten-seemann)
Show details on NVD website
To clipboard 

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CVE-2023-6193 (GCVE-0-2023-6193)

Vulnerability from cvelistv5 – Published: 2023-12-12 13:32 – Updated: 2024-08-02 08:21
VLAI?
Summary
quiche v. 0.15.0 through 0.19.0 was discovered to be vulnerable to unbounded queuing of path validation messages, which could lead to excessive resource consumption. QUIC path validation (RFC 9000 Section 8.2) requires that the recipient of a PATH_CHALLENGE frame responds by sending a PATH_RESPONSE. An unauthenticated remote attacker can exploit the vulnerability by sending PATH_CHALLENGE frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that PATH_RESPONSE frames can only be sent at the slower rate than they are received; leading to storage of path validation data in an unbounded queue. Quiche versions greater than 0.19.0 address this problem.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: 0.15.0 , ≤ 0.19.0 (semver)
Create a notification for this product.
Credits
Marten Seemann
Show details on NVD website
To clipboard 

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CVE-2025-7054 (GCVE-0-2025-7054)

Vulnerability from nvd – Published: 2025-08-07 15:19 – Updated: 2025-08-07 15:52
VLAI?
Summary
Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRE_CONNECTION_ID frames. QUIC connections possess a set of connection identifiers (IDs); see Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-5.1 . Once the QUIC handshake completes, a local endpoint is responsible for issuing and retiring Connection IDs that are used by the remote peer to populate the Destination Connection ID field in packets sent from remote to local. Each Connection ID has a sequence number to ensure synchronization between peers. An unauthenticated remote attacker can exploit this vulnerability by first completing a handshake and then sending a specially-crafted set of frames that trigger a connection ID retirement in the victim. When the victim attempts to send a packet containing RETIRE_CONNECTION_ID frames, Section 19.16 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-19.6 requires that the sequence number of the retired connection ID must not be the same as the sequence number of the connection ID used by the packet. In other words, a packet cannot contain a frame that retires itself. In scenarios such as path migration, it is possible for there to be multiple active paths with different active connection IDs that could be used to retire each other. The exploit triggered an unintentional behaviour of a quiche design feature that supports retirement across paths while maintaining full connection ID synchronization, leading to an infinite loop.This issue affects quiche: from 0.15.0 before 0.24.5.
Severity ?
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: 0.15.0 , < 0.24.5 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-4821 (GCVE-0-2025-4821)

Vulnerability from nvd – Published: 2025-06-18 15:47 – Updated: 2025-06-18 18:29
VLAI?
Summary
Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support. An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating a congestion-controlled data transfer towards itself. Then, it could manipulate the victim's congestion control state by sending ACK frames covering a large range of packet numbers (including packet numbers that had never been sent); see RFC 9000 Section 19.3. The victim could grow the congestion window beyond typical expectations and allow more bytes in flight than the path might really support. In extreme cases, the window might grow beyond the limit of the internal variable's type, leading to an overflow panic. Patches quiche 0.24.4 is the earliest version containing the fix for this issue.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: <0.24.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-4820 (GCVE-0-2025-4820)

Vulnerability from nvd – Published: 2025-06-18 15:45 – Updated: 2025-06-18 18:27
VLAI?
Summary
Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support. An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating a congestion-controlled data transfer towards itself. Then, it could manipulate the victim's congestion control state by sending ACK frames exercising an opportunistic ACK attack; see RFC 9000 Section 21.4. The victim could grow the congestion window beyond typical expectations and allow more bytes in flight than the path might really support. Patches quiche 0.24.4 is the earliest version containing the fix for this issue.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: <0.24.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-1410 (GCVE-0-2024-1410)

Vulnerability from nvd – Published: 2024-03-12 18:06 – Updated: 2024-08-01 18:40
VLAI?
Summary
Cloudflare quiche was discovered to be vulnerable to unbounded storage of information related to connection ID retirement, which could lead to excessive resource consumption. Each QUIC connection possesses a set of connection Identifiers (IDs); see RFC 9000 Section 5.1 https://datatracker.ietf.org/doc/html/rfc9000#section-5.1 . Endpoints declare the number of active connection IDs they are willing to support using the active_connection_id_limit transport parameter. The peer can create new IDs using a NEW_CONNECTION_ID frame but must stay within the active ID limit. This is done by retirement of old IDs, the endpoint sends NEW_CONNECTION_ID includes a value in the retire_prior_to field, which elicits a RETIRE_CONNECTION_ID frame as confirmation. An unauthenticated remote attacker can exploit the vulnerability by sending NEW_CONNECTION_ID frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that RETIRE_CONNECTION_ID frames can only be sent at a slower rate than they are received, leading to storage of information related to connection IDs in an unbounded queue. Quiche versions 0.19.2 and 0.20.1 are the earliest to address this problem. There is no workaround for affected versions.
Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: 0.15.0 , < <0.19.2 (semver)
Affected: 0.20.0 , < <0.20.1 (semver)
Create a notification for this product.
Credits
Marten Seeman (@marten-seemann)
Show details on NVD website
To clipboard 

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CVE-2024-1765 (GCVE-0-2024-1765)

Vulnerability from nvd – Published: 2024-03-12 18:04 – Updated: 2024-08-01 18:48
VLAI?
Summary
Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client. A remote attacker could take advantage of this vulnerability by repeatedly sending an unlimited number of 1-RTT CRYPTO frames after previously completing the QUIC handshake. Exploitation was possible for the duration of the connection which could be extended by the attacker.  quiche 0.19.2 and 0.20.1 are the earliest versions containing the fix for this issue.
Severity ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: 0.15.0 , ≤ <0.19.1 (semver)
Affected: 0.20.0 , < <0.20.1 (semver)
Create a notification for this product.
Credits
Marten Seeman (@marten-seemann)
Show details on NVD website
To clipboard 

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CVE-2023-6193 (GCVE-0-2023-6193)

Vulnerability from nvd – Published: 2023-12-12 13:32 – Updated: 2024-08-02 08:21
VLAI?
Summary
quiche v. 0.15.0 through 0.19.0 was discovered to be vulnerable to unbounded queuing of path validation messages, which could lead to excessive resource consumption. QUIC path validation (RFC 9000 Section 8.2) requires that the recipient of a PATH_CHALLENGE frame responds by sending a PATH_RESPONSE. An unauthenticated remote attacker can exploit the vulnerability by sending PATH_CHALLENGE frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that PATH_RESPONSE frames can only be sent at the slower rate than they are received; leading to storage of path validation data in an unbounded queue. Quiche versions greater than 0.19.0 address this problem.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
Cloudflare quiche Affected: 0.15.0 , ≤ 0.19.0 (semver)
Create a notification for this product.
Credits
Marten Seemann
Show details on NVD website
To clipboard 

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