Описание
JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.
A flaw was found in JWCrypto, a Python library for JSON Web Key (JWK), JSON Web Signature (JWS), and JSON Web Encryption (JWE) specifications. An unauthenticated attacker can exploit this vulnerability by sending specially crafted JWE tokens that use ZIP compression. While the input token size is limited, the decompressed output size is not validated, allowing an attacker to cause excessive memory consumption. This can lead to memory exhaustion on affected systems, resulting in a Denial of Service (DoS).
Отчет
This is an Important denial of service vulnerability in JWCrypto, a Python library used in Red Hat products such as Red Hat Ansible Automation Platform and Red Hat Enterprise Linux. An unauthenticated attacker can send specially crafted JWE tokens with ZIP compression, leading to excessive memory consumption and potential system exhaustion. This can result in a denial of service on affected systems.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Ansible Automation Platform 2 | ansible-automation-platform-24/lightspeed-rhel8 | Fix deferred | ||
| Red Hat Ansible Automation Platform 2 | ansible-automation-platform-25/lightspeed-rhel8 | Affected | ||
| Red Hat Ansible Automation Platform 2 | ansible-automation-platform-26/controller-rhel9 | Affected | ||
| Red Hat Ansible Automation Platform 2 | ansible-automation-platform-26/lightspeed-rhel9 | Affected | ||
| Red Hat Ansible Automation Platform 2 | automation-controller | Affected | ||
| Red Hat Ansible Automation Platform 2 | python3.11-jwcrypto | Not affected | ||
| Red Hat Enterprise Linux 7 | python-jwcrypto | Fix deferred | ||
| Red Hat Enterprise Linux 8 | idm:client/python-jwcrypto | Fix deferred | ||
| Red Hat Enterprise Linux 8 | idm:DL1/python-jwcrypto | Fix deferred | ||
| Red Hat Hardened Images | python-cryptography | Not affected |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.
JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.
JWCrypto implements JWK, JWS, and JWE specifications using python-cryp ...
EPSS
7.5 High
CVSS3