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CVE-2021-47668

Опубликовано: 17 апр. 2025
Источник: redhat
CVSS3: 5.5
EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved: can: dev: can_restart: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the netif_rx_ni() in: stats->rx_bytes += cf->len; Reordering the lines solves the issue.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelNot affected
Red Hat Enterprise Linux 6kernelOut of support scope
Red Hat Enterprise Linux 7kernelOut of support scope
Red Hat Enterprise Linux 7kernel-rtOut of support scope
Red Hat Enterprise Linux 8kernelOut of support scope
Red Hat Enterprise Linux 8kernel-rtOut of support scope
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 9kernel-rtNot affected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-416
https://bugzilla.redhat.com/show_bug.cgi?id=2360785kernel: can: dev: can_restart: fix use after free bug

EPSS

Процентиль: 6%
0.00024
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 7.8
ubuntu
10 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: can: dev: can_restart: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the netif_rx_ni() in: stats->rx_bytes += cf->len; Reordering the lines solves the issue.

CVSS3: 7.8
nvd
10 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: can: dev: can_restart: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the netif_rx_ni() in: stats->rx_bytes += cf->len; Reordering the lines solves the issue.

CVSS3: 7.8
debian
10 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: c ...

CVSS3: 7.8
github
10 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: can: dev: can_restart: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the netif_rx_ni() in: stats->rx_bytes += cf->len; Reordering the lines solves the issue.

suse-cvrf
9 месяцев назад

Security update for the Linux Kernel

EPSS

Процентиль: 6%
0.00024
Низкий

5.5 Medium

CVSS3