Описание
Calling curl_easy_pause() within the event-based CURLMOPT_SOCKETFUNCTION
callback triggers a use-after-free vulnerability, where libcurl attempts to
store a flag using a dangling struct pointer immediately after that pointer's
memory has been freed.
A flaw was found in libcurl. When curl_easy_pause() is called within the event-based CURLMOPT_SOCKETFUNCTION callback, a use-after-free vulnerability is triggered. This occurs because libcurl attempts to store a flag using a pointer to memory that has already been freed. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.
Отчет
This Important flaw in libcurl stems from a use-after-free vulnerability when curl_easy_pause() is called within the CURLMOPT_SOCKETFUNCTION callback. This could allow an attacker to achieve denial of service or arbitrary code execution without requiring user interaction or elevated privileges. While dependent on a specific application implementation, the broad adoption of libcurl means Red Hat products leveraging this callback pattern could be affected.
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 |
|---|---|---|---|---|
| Confidential Compute Attestation | build-of-trustee/trustee-rhel9 | Under investigation | ||
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-podvm-payload-rhel9 | Under investigation | ||
| Red Hat Enterprise Linux 10 | curl | Not affected | ||
| Red Hat Enterprise Linux 10 | igvm | Under investigation | ||
| Red Hat Enterprise Linux 10 | rust | Under investigation | ||
| Red Hat Enterprise Linux 10 | s390utils | Under investigation | ||
| Red Hat Enterprise Linux 10 | snphost | Under investigation | ||
| Red Hat Enterprise Linux 10 | trustee | Under investigation | ||
| Red Hat Enterprise Linux 10 | trustee-guest-components | Under investigation | ||
| Red Hat Enterprise Linux 6 | curl | Not affected |
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Дополнительная информация
Статус:
7.3 High
CVSS3
Связанные уязвимости
Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION` callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed.
Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION` callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed.
Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUN ...
Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION` callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed.
7.3 High
CVSS3