Описание
Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited
A flaw was found in unbound. An integer overflow in the regional allocator via the ALIGN_UP macro may lead to a buffer overflow if the size can be controlled by an attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.
Отчет
There is no available reproducer or proof of concept for this issue, nor it was ever proven the buffer overflow can happen in practice. Indeed this issue was initially considered just as "side-finding", according to the original report, and for this reason its Impact is Moderate. Upstream has also disputed this CVE.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | unbound | Out of support scope | ||
| Red Hat Enterprise Linux 7 | unbound | Out of support scope | ||
| Red Hat Enterprise Linux 9 | unbound | Not affected | ||
| Red Hat Enterprise Linux 8 | unbound | Fixed | RHSA-2022:7622 | 08.11.2022 |
| Red Hat Enterprise Linux 8.6 Extended Update Support | unbound | Fixed | RHSA-2024:0749 | 08.02.2024 |
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Дополнительная информация
Статус:
9.8 Critical
CVSS3
Связанные уязвимости
Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited
Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited
Unbound before 1.9.5 allows an integer overflow in the regional alloca ...
Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro.
Уязвимость макроса ALIGN_UP DNS-сервера Unbound, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании
9.8 Critical
CVSS3