CVE-2023-4921 Use-after-free in Linux kernel's net/sched: sch_qfq component

A use-after-free vulnerability in the Linux kernel's net/sched: schqfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfqdequeue due to the incorrect .peek handler of...

CVE-2023-4921

CVE-2023-4921 is a Linux kernel net/sched vulnerability in the qfq (Priority Fair Queue) subsystem. When the plug qdisc is used as a class of the qfq qdisc, sending packets can trigger a use-after-free in qfq_dequeue() due to the incorrect .peek handler in sch_plug and missing error checking in a...

CVE-2023-4921

A use-after-free vulnerability in the Linux kernel's net/sched: schqfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfqdequeue due to the incorrect .peek handler of...

kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function

A use-after-free vulnerability was found in fwsetparms in net/sched/clsfw.c in network scheduler sub-component in the Linux Kernel. This issue occurs due to a missing sanity check during cleanup at the time of failure, leading to a misleading reference. This may allow a local attacker to gain loc...

Use-after-free in Linux kernel's net/sched: cls_route component

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Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2023-2787)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

The vulnerability of the route4_change() function in the net/sched/cls_route.c module of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information, or to enhance their privileges.

The vulnerability of the route4change function in the net/sched/clsroute.c module of the Linux kernel is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of protected...

SUSE CVE-2023-4206

A use-after-free vulnerability in the Linux kernel's net/sched: clsroute component can be exploited to achieve local privilege escalation. When route4change is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when...

SUSE CVE-2023-4207

A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. When fwchange is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when updati...

SUSE CVE-2023-4208

A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. When u32change is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when...

CVE-2023-4208

There are 3 CVEs for the use-after-free flaw found in net/sched/clsfw.c in classifiers clsfw, clsu32, and clsroute in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. A local user could use any of these flaws to crash the system or potentially escalate their privileges on the system...

CVE-2023-4207

There are 3 CVEs for the use-after-free flaw found in net/sched/clsfw.c in classifiers clsfw, clsu32, and clsroute in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. A local user could use any of these flaws to crash the system or potentially escalate their privileges on the system...

CVE-2023-4623

A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc 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 HFSCFSC flag set has a parent without a link-sharing curve, then initvf will call...

DEBIAN-CVE-2023-4208

A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. When u32change is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when...

CVE-2023-4206

A use-after-free vulnerability in the Linux kernel's net/sched: clsroute component can be exploited to achieve local privilege escalation. When route4change is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when...

CVE-2023-4207

A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. When fwchange is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when updati...

CVE-2023-4208

A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. When u32change is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when...

DEBIAN-CVE-2023-4206

A use-after-free vulnerability in the Linux kernel's net/sched: clsroute component can be exploited to achieve local privilege escalation. When route4change is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when...

AZL-28677 CVE-2023-4208 affecting package kernel for versions less than 5.15.131.1-2

A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. When u32change is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when...

DEBIAN-CVE-2023-4207

A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. When fwchange is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when updati...