Jwcrypto: jwcrypto: denial of service via o(n^2) duplicate check on unbounded jwk key_ops array
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: poc
- Automatable: no
- Technical impact: partial
Summary
A flaw was found in jwcrypto. The JWK.import_key() function validates the key_ops JWK member for duplicate values using an algorithm with O(n^2) time complexity, and the length of key_ops is not bounded. A remote, unauthenticated attacker can supply a JWK with a large key_ops array to an application that passes attacker-controlled key material to a public key-import API (reachable via ECDH-ES key agreement, OIDC dynamic client registration, DPoP, or ACME account key registration, among others) to consume excessive CPU time, resulting in a denial of service.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- ansible-automation-platform-24/controller-rhel8
Version range not reported
- ansible-automation-platform-24/lightspeed-rhel8
Version range not reported
- ansible-automation-platform-25/controller-rhel8
Version range not reported
- ansible-automation-platform-25/gateway-rhel8
Version range not reported
- ansible-automation-platform-25/lightspeed-rhel8
Version range not reported
- ansible-automation-platform-26/controller-rhel9
Version range not reported
- ansible-automation-platform-26/gateway-rhel9
Version range not reported
- ansible-automation-platform-26/lightspeed-rhel9
Version range not reported
- ansible-automation-platform-27/gateway-rhel9
Version range not reported
- ansible-automation-platform-27/lightspeed-rhel9
Version range not reported
- automation-controller
Version range not reported
- python3.11-jwcrypto
Version range not reported
- python3.12-jwcrypto
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- python-jwcrypto
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- python-jwcrypto
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- idm:client/python-jwcrypto
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- idm:DL1/python-jwcrypto
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- python-jwcrypto
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- rhoai/odh-feature-server-rhel9
Version range not reported
- rhoai/odh-kserve-storage-initializer-rhel9
Version range not reported
- rhosp-rhel8/openstack-mistral-executor
Version range not reported
- rhosp-rhel8/openstack-nova-api
Version range not reported
- rhosp-rhel8/openstack-nova-compute-ironic
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- rhosp-rhel8/openstack-novajoin-base
Version range not reported
- rhosp-rhel8/openstack-novajoin-notifier
Version range not reported
- rhosp-rhel8/openstack-novajoin-server
Version range not reported
- rhosp-rhel8/openstack-tempest
Version range not reported
- rhosp-rhel8/openstack-tripleoclient
Version range not reported
- rhosp-rhel9/openstack-nova-api
Version range not reported
- rhosp-rhel9/openstack-nova-compute-ironic
Version range not reported
- rhosp-rhel9/openstack-novajoin-base
Version range not reported
- rhosp-rhel9/openstack-novajoin-notifier
Version range not reported
- rhosp-rhel9/openstack-novajoin-server
Version range not reported
- rhosp-rhel9/openstack-tempest
Version range not reported
- rhosp-rhel9/openstack-tripleoclient
Version range not reported