Описание
dnsmasq before 2.78, when configured as a relay, allows remote attackers to obtain sensitive memory information via vectors involving handling DHCPv6 forwarded requests.
An information leak was found in dnsmasq in the DHCPv6 relay code. An attacker on the local network could send crafted DHCPv6 packets to dnsmasq causing it to forward the contents of process memory, potentially leaking sensitive data.
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 5 | dnsmasq | Not affected | ||
| Red Hat Enterprise Linux 6 | dnsmasq | Not affected | ||
| 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 7 | dnsmasq | Fixed | RHSA-2017:2836 | 02.10.2017 |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
7.8 High
CVSS2
Связанные уязвимости
dnsmasq before 2.78, when configured as a relay, allows remote attackers to obtain sensitive memory information via vectors involving handling DHCPv6 forwarded requests.
dnsmasq before 2.78, when configured as a relay, allows remote attackers to obtain sensitive memory information via vectors involving handling DHCPv6 forwarded requests.
dnsmasq before 2.78, when configured as a relay, allows remote attacke ...
dnsmasq before 2.78, when configured as a relay, allows remote attackers to obtain sensitive memory information via vectors involving handling DHCPv6 forwarded requests.
Уязвимость DNS-сервера dnsmasq, связанная с недостатками обработки перенаправленных DHCPv6-запросов, позволяющая нарушителю раскрыть защищаемую информацию
EPSS
6.5 Medium
CVSS3
7.8 High
CVSS2