Описание
If an X.509 certificate contains a malformed policy constraint and
policy processing is enabled, then a write lock will be taken twice
recursively. On some operating systems (most widely: Windows) this
results in a denial of service when the affected process hangs. Policy
processing being enabled on a publicly facing server is not considered
to be a common setup.
Policy processing is enabled by passing the -policy' argument to the command line utilities or by calling the X509_VERIFY_PARAM_set1_policies()' function.
Update (31 March 2023): The description of the policy processing enablement
was corrected based on CVE-2023-0466.
A vulnerability was found in OpenSSL. This security flaw occurs if an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows), this issue results in a denial of service when the affected process hangs. Policy processing enabled on a publicly-facing server is not considered a standard setup. Policy processing is enabled by passing the -policy' argument to the command line utilities or by calling either the X509_VERIFY_PARAM_add0_policy()' or `X509_VERIFY_PARAM_set1_policies()' functions.
Отчет
This CVE is marked as Not Affected for all Red Hat Products because the problem caused by this CVE (deadlock, potential DDoS) is platform-specific. Thread management implementation works well for Linux but causes deadlocks on Windows systems only.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | openssl | Not affected | ||
| Red Hat Enterprise Linux 7 | openssl | Not affected | ||
| Red Hat Enterprise Linux 7 | ovmf | Not affected | ||
| Red Hat Enterprise Linux 8 | compat-openssl10 | Not affected | ||
| Red Hat Enterprise Linux 8 | edk2 | Not affected | ||
| Red Hat Enterprise Linux 8 | openssl | Not affected | ||
| Red Hat Enterprise Linux 8 | shim | Not affected | ||
| Red Hat Enterprise Linux 9 | compat-openssl11 | Not affected | ||
| Red Hat Enterprise Linux 9 | edk2 | Not affected | ||
| Red Hat Enterprise Linux 9 | openssl | Not affected |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs. Policy processing being enabled on a publicly facing server is not considered to be a common setup. Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. Update (31 March 2023): The description of the policy processing enablement was corrected based on CVE-2023-0466.
If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs. Policy processing being enabled on a publicly facing server is not considered to be a common setup. Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. Update (31 March 2023): The description of the policy processing enablement was corrected based on CVE-2023-0466.
If an X.509 certificate contains a malformed policy constraint and pol ...
Denial of service by double-checked locking in openssl-src
EPSS
5.3 Medium
CVSS3