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CVE-2023-4623

Опубликовано: 29 окт. 2023
Источник: msrc
CVSS3: 7.8
EPSS Низкий

Описание

Use-after-free in Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component

EPSS

Процентиль: 3%
0.00018
Низкий

7.8 High

CVSS3

Связанные уязвимости

CVSS3: 7.8
ubuntu
около 2 лет назад

A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free. We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.

CVSS3: 7.8
redhat
около 2 лет назад

A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free. We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.

CVSS3: 7.8
nvd
около 2 лет назад

A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free. We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.

CVSS3: 7.8
debian
около 2 лет назад

A use-after-free vulnerability in the Linux kernel's net/sched: sch_hf ...

suse-cvrf
около 2 лет назад

Security update for the Linux Kernel (Live Patch 5 for SLE 15 SP5)

EPSS

Процентиль: 3%
0.00018
Низкий

7.8 High

CVSS3