Описание
Unbound before 1.9.5 allows an out-of-bounds write in sldns_bget_token_par. 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 out-of-bounds write in the sldns_bget_token_par function may be abused by a remote 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 out-of-bounds write can happen in practice. Indeed in the original report this issue was considered one that might not be triggered 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-2021:1853 | 18.05.2021 |
| Red Hat Enterprise Linux 8.2 Extended Update Support | unbound | Fixed | RHSA-2022:0632 | 22.02.2022 |
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Дополнительная информация
Статус:
EPSS
9.8 Critical
CVSS3
Связанные уязвимости
Unbound before 1.9.5 allows an out-of-bounds write in sldns_bget_token_par. 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 out-of-bounds write in sldns_bget_token_par. 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 out-of-bounds write in sldns_bget_token ...
Unbound before 1.9.5 allows an out-of-bounds write in sldns_bget_token_par.
Уязвимость функции sldns_bget_token_par DNS-сервера Unbound, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании
EPSS
9.8 Critical
CVSS3