Описание
Applications that use a non-default option when verifying certificates may be
vulnerable to an attack from a malicious CA to circumvent certain checks.
Invalid certificate policies in leaf certificates are silently ignored by
OpenSSL and other certificate policy checks are skipped for that certificate.
A malicious CA could use this to deliberately assert invalid certificate policies
in order to circumvent policy checking on the certificate altogether.
Policy processing is disabled by default but can be enabled by passing
the -policy' argument to the command line utilities or by calling the X509_VERIFY_PARAM_set1_policies()' function.
A flaw was found in OpenSSL. Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. OpenSSL and other certificate policy checks silently ignore invalid certificate policies in leaf certificates that are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies to circumvent policy checking on the certificate altogether. Policy processing is disabled by default but can be enabled by passing the -policy' argument to the command line utilities or by calling the X509_VERIFY_PARAM_set1_policies()' function.
Отчет
Red Hat has determined that this flaw is of low impact because it only affects applications that use a non-default configuration (enabling policy processing), requires a malicious CA, and does not compromise cryptographic integrity or directly enable system exploitation.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | openssl | Out of support scope | ||
| Red Hat Enterprise Linux 7 | openssl | Out of support scope | ||
| Red Hat Enterprise Linux 7 | ovmf | Out of support scope | ||
| Red Hat Enterprise Linux 8 | compat-openssl10 | Will not fix | ||
| Red Hat Enterprise Linux 8 | edk2 | Not affected | ||
| Red Hat Enterprise Linux 8 | openssl | Fix deferred | ||
| Red Hat Enterprise Linux 8 | shim | Fix deferred | ||
| Red Hat Enterprise Linux 9 | compat-openssl11 | Will not fix | ||
| Red Hat Enterprise Linux 9 | edk2 | Not affected | ||
| Red Hat Enterprise Linux 9 | shim | Fix deferred |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.
Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.
Applications that use a non-default option when verifying certificates ...
EPSS
5.3 Medium
CVSS3