Описание
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.4.0 through 5.11.0 contain an accumulating memory leak in JSON parsing large (outside of the range [-2^63, 2^64 - 1]) integers. The leaked memory is a copy of the string form of the integer plus an additional NULL byte. The leak occurs irrespective of whether the integer parses successfully or is rejected due to having more than sys.get_int_max_str_digits() digits, meaning that any sized leak per malicious JSON can be achieved provided that there is no limit on the overall size of the payload. Any service that calls ujson.load()/ujson.loads()/ujson.decode() on untrusted inputs is affected and vulnerable to denial of service attacks. This issue has been fixed in version 5.12.0.
A flaw was found in UltraJSON, a fast JSON encoder and decoder. A remote attacker can exploit this vulnerability by providing specially crafted JSON input that contains extremely large integers. When UltraJSON attempts to parse these inputs, it leads to an accumulating memory leak. This excessive memory consumption can ultimately result in a denial of service (DoS) for any service that processes untrusted JSON inputs using UltraJSON.
Отчет
This IMPORTANT flaw in UltraJSON can lead to a denial of service in services that process untrusted JSON inputs. Specially crafted JSON containing excessively large integers can trigger a memory leak, consuming system resources. This affects Red Hat OpenStack Platform and Community Projects utilizing python-ujson.
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 |
|---|---|---|---|---|
| Red Hat OpenStack Platform 16.2 | python-ujson | Not affected | ||
| Red Hat OpenStack Platform 17.1 | python-ujson | Not affected | ||
| Red Hat OpenStack Platform 18.0 | python-ujson | Not affected |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.4.0 through 5.11.0 contain an accumulating memory leak in JSON parsing large (outside of the range [-2^63, 2^64 - 1]) integers. The leaked memory is a copy of the string form of the integer plus an additional NULL byte. The leak occurs irrespective of whether the integer parses successfully or is rejected due to having more than sys.get_int_max_str_digits() digits, meaning that any sized leak per malicious JSON can be achieved provided that there is no limit on the overall size of the payload. Any service that calls ujson.load()/ujson.loads()/ujson.decode() on untrusted inputs is affected and vulnerable to denial of service attacks. This issue has been fixed in version 5.12.0.
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.4.0 through 5.11.0 contain an accumulating memory leak in JSON parsing large (outside of the range [-2^63, 2^64 - 1]) integers. The leaked memory is a copy of the string form of the integer plus an additional NULL byte. The leak occurs irrespective of whether the integer parses successfully or is rejected due to having more than sys.get_int_max_str_digits() digits, meaning that any sized leak per malicious JSON can be achieved provided that there is no limit on the overall size of the payload. Any service that calls ujson.load()/ujson.loads()/ujson.decode() on untrusted inputs is affected and vulnerable to denial of service attacks. This issue has been fixed in version 5.12.0.
UltraJSON is a fast JSON encoder and decoder written in pure C with bi ...
UltraJSON has a Memory Leak parsing large integers allows DoS
Уязвимость пакета UltraJSON языка программирования Python, связанная с отсутствием освобождения памяти после эффективного срока службы, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
7.5 High
CVSS3