kernel: use-after-free in sch_qfq network scheduler

A use-after-free flaw was found in qfqdequeue and aggdequeue in net/sched/schqfq.c in the Traffic Control QoS subsystem in the Linux kernel. This issue may allow a local user to crash the system or escalate their privileges on the system...

Important: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead

An out-of-bounds memory write flaw was found in qfqchangeagg in net/sched/schqfq.c in the Traffic Control QoS subsystem in the Linux kernel. This flaw allows a local user to crash or potentially escalate their privileges on the system...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.2 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security...

RHEL 8 : kernel (RHSA-2024:1268)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1268 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nftables:...

CentOS 7 : kernel (RHSA-2024:1249)

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1249 advisory. - There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2capcore.c's l2capconnect and l2capleconnectreq functions which may all...

CentOS: Security Advisory for bpftool (CESA-2023:7423)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

openSUSE: Security Advisory for the Linux Kernel (SUSE-SU-2023:3599-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

K000138726: Linux kernel vulnerability CVE-2023-3611

Security Advisory Description An out-of-bounds write vulnerability in the Linux kernel's net/sched: schqfq component can be exploited to achieve local privilege escalation. The qfqchangeagg function in net/sched/schqfq.c allows an out-of-bounds write because lmax is updated according to packet...

SUSE CVE-2021-47014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

SUSE SLES12: kernel-livepatch-5_14_21-150500_55_19-default / etc (SUSE-SU-2024:0698-1)

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0698-1 advisory. This update for the Linux Kernel 4.12.14-122147 fixes several issues. The following security issues were fixed: - CVE-2023-4921: Fixed...

SUSE SLES12: kernel-livepatch-5_14_21-150500_11-rt / etc (SUSE-SU-2024:0655-1)

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0655-1 advisory. This update for the Linux Kernel 4.12.14-122153 fixes several issues. The following security issues were fixed: - CVE-2023-4921: Fixed...

CVE-2021-47014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-47014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-47014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-47014 net/sched: act_ct: fix wild memory access when clearing fragments

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-47014

CVE-2021-47014 affects the Linux kernel’s net/sched code, specifically the act_ct action used during IP fragment handling. The root cause was a wild memory access that occurred when a temporarily stored IP fragment was reassembled: restoring skb->cb could overwrite FRAG_CB(), causing invalid m...

CVE-2021-47014 net/sched: act_ct: fix wild memory access when clearing fragments

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-46954

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfrag: fix stack OOB read while fragmenting IPv4 packets when 'actmirred' tries to fragment IPv4 packets that had been previously re-assembled using 'actct', splats like the following can be observed on kernels built...