Описание
net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig) from the net-tools package do not properly validate the structure of /proc files when showing interfaces. get_name() in interface.c copies interface labels from /proc/net/dev into a fixed 16-byte stack buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack path does not require privilege but also does not provide privilege escalation in this scenario. A patch is available and expected to be part of version 2.20.
A flaw was found in net-tools. This vulnerability allows arbitrary code execution or a crash via improper handling of interface labels from /proc/net/dev.
Меры по смягчению последствий
To mitigate this vulnerability, disable unprivileged user-namespaces (sysctl kernel.unprivileged_userns_clone=0) to remove the easiest non-privileged trigger path.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | net-tools | Affected | ||
| Red Hat Enterprise Linux 6 | net-tools | Fix deferred | ||
| Red Hat Enterprise Linux 7 | net-tools | Fix deferred | ||
| Red Hat Enterprise Linux 8 | net-tools | Fix deferred | ||
| Red Hat Enterprise Linux 9 | net-tools | Affected | ||
| Red Hat OpenShift Container Platform 4 | rhcos | Fix deferred |
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Дополнительная информация
Статус:
EPSS
6.6 Medium
CVSS3
Связанные уязвимости
net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig) from the net-tools package do not properly validate the structure of /proc files when showing interfaces. `get_name()` in `interface.c` copies interface labels from `/proc/net/dev` into a fixed 16-byte stack buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack path does not require privilege but also does not provide privilege escalation in this scenario. A patch is available and expected to be part of version 2.20.
net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig) from the net-tools package do not properly validate the structure of /proc files when showing interfaces. `get_name()` in `interface.c` copies interface labels from `/proc/net/dev` into a fixed 16-byte stack buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack path does not require privilege but also does not provide privilege escalation in this scenario. A patch is available and expected to be part of version 2.20.
net-tools is a collection of programs that form the base set of the NE ...
EPSS
6.6 Medium
CVSS3