Описание
Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.
A flaw was found in the crypto/tls package in Go. Handshakes utilizing Encrypted Client Hello (ECH) could lead to de-anonymization by a passive network observer. This is due to the disclosure of pre-shared key identities within the unencrypted client hello, allowing an attacker to potentially link connections.
Отчет
This Moderate-impact information disclosure flaw in the Go crypto/tls package allows a passive network observer to de-anonymize connections utilizing Encrypted Client Hello (ECH). The vulnerability stems from the unintentional exposure of pre-shared key identities within the unencrypted client hello, potentially enabling an attacker to link previously anonymous connections. This primarily affects the privacy of communications rather than integrity or availability.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Assisted Installer for Red Hat OpenShift Container Platform 2 | rhai/assisted-installer-rhel9 | Fix deferred | ||
| Builds for Red Hat OpenShift | openshift-builds/openshift-builds-waiters-rhel9 | Fix deferred | ||
| cert-manager Operator for Red Hat OpenShift | cert-manager/jetstack-cert-manager-rhel9 | Fix deferred | ||
| Compliance Operator | compliance/openshift-compliance-operator-bundle | Fix deferred | ||
| Confidential Compute Attestation | build-of-trustee/trustee-rhel9-operator | Fix deferred | ||
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-monitor-rhel9 | Fix deferred | ||
| Cryostat 4 | cryostat/cryostat-storage-rhel9 | Fix deferred | ||
| Custom Metric Autoscaler operator for Red Hat Openshift | custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9 | Fix deferred | ||
| Deployment Validation Operator | dvo/deployment-validation-rhel8-operator | Fix deferred | ||
| External Secrets Operator for Red Hat OpenShift | external-secrets-operator/external-secrets-rhel9 | Fix deferred |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.
Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.
Invoking Encrypted Client Hello privacy leak in crypto/tls
Handshakes which used Encrypted Client Hello could be de-anonymized by ...
EPSS
5.3 Medium
CVSS3