Описание
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.
A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash or, potentially, execute arbitrary code.
Отчет
Red Hat OpenStack Platform includes the dnsmasq-utils RPM which does not contain this flaw's affected code-paths; Red Hat OpenStack Platform is therefore listed as not affected. However, because all versions of Red Hat OpenStack Platform are based on Red Hat Enterprise Linux, all Red Hat OpenStack Platform users should absolutely upgrade the dnsmasq RPM from Red Hat Enterprise Linux as a matter of urgency using standard update mechanisms (such as 'yum update' or 'openstack overcloud update').
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | dnsmasq | Not affected | ||
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | dnsmasq | Not affected | ||
| Red Hat OpenStack Platform 10 (Newton) | dnsmasq | Not affected | ||
| Red Hat OpenStack Platform 11 (Ocata) | dnsmasq | Not affected | ||
| Red Hat OpenStack Platform 12 (Pike) | dnsmasq | Not affected | ||
| Red Hat OpenStack Platform 8 (Liberty) | dnsmasq | Not affected | ||
| Red Hat OpenStack Platform 9 (Mitaka) | dnsmasq | Not affected | ||
| Red Hat Enterprise Linux 5.9 Long Life | dnsmasq | Fixed | RHSA-2017:2841 | 02.10.2017 |
| Red Hat Enterprise Linux 5 Extended Lifecycle Support | dnsmasq | Fixed | RHSA-2017:2840 | 02.10.2017 |
| Red Hat Enterprise Linux 6 | dnsmasq | Fixed | RHSA-2017:2838 | 02.10.2017 |
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Дополнительная информация
Статус:
EPSS
9.8 Critical
CVSS3
10 Critical
CVSS2
Связанные уязвимости
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attack ...
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.
EPSS
9.8 Critical
CVSS3
10 Critical
CVSS2