Описание
The brcmf_cfg80211_mgmt_tx function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.12.3 allows local users to cause a denial of service (buffer overflow and system crash) or possibly gain privileges via a crafted NL80211_CMD_FRAME Netlink packet.
Kernel memory corruption due to a buffer overflow was found in brcmf_cfg80211_mgmt_tx() function in Linux kernels from v3.9-rc1 to v4.13-rc1. The vulnerability can be triggered by sending a crafted NL80211_CMD_FRAME packet via netlink. This flaw is unlikely to be triggered remotely as certain userspace code is needed for this. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.
Отчет
This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 as the code with the flaw is not present in the products listed. This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates for these products may address this issue.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel-alt | Affected | ||
| Red Hat Enterprise Linux 6 | kernel | Fixed | RHSA-2017:2863 | 05.10.2017 |
| Red Hat Enterprise Linux 7 | kernel-rt | Fixed | RHSA-2017:2931 | 19.10.2017 |
| Red Hat Enterprise Linux 7 | kernel | Fixed | RHSA-2017:2930 | 19.10.2017 |
| Red Hat Enterprise MRG 2 | kernel-rt | Fixed | RHSA-2017:2918 | 19.10.2017 |
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Дополнительная информация
Статус:
EPSS
6.8 Medium
CVSS3
Связанные уязвимости
The brcmf_cfg80211_mgmt_tx function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.12.3 allows local users to cause a denial of service (buffer overflow and system crash) or possibly gain privileges via a crafted NL80211_CMD_FRAME Netlink packet.
The brcmf_cfg80211_mgmt_tx function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.12.3 allows local users to cause a denial of service (buffer overflow and system crash) or possibly gain privileges via a crafted NL80211_CMD_FRAME Netlink packet.
The brcmf_cfg80211_mgmt_tx function in drivers/net/wireless/broadcom/b ...
The brcmf_cfg80211_mgmt_tx function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.12.3 allows local users to cause a denial of service (buffer overflow and system crash) or possibly gain privileges via a crafted NL80211_CMD_FRAME Netlink packet.
ELSA-2017-3629: Unbreakable Enterprise kernel security update (MODERATE)
EPSS
6.8 Medium
CVSS3