UBUNTU-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...

AZL-31697 CVE-2023-4623 affecting package kernel for versions less than 5.15.135.1-2

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...

UBUNTU-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...

OESA-2023-1470 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In multiple functions of binder.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for...

PT-2023-4898 · Linux +6 · Linux Kernel +6

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A use-after-free vulnerability in the Linux kernel's net/sched: cls route component can be exploited to achieve local privilege escalation. When route4 change is called on an existing...

SUSE CVE-2023-3609

A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, u32setparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter. If an attacker...

SUSE CVE-2023-3776

A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, fwsetparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter. If an attacker ca...

DEBIAN-CVE-2023-3776

A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, fwsetparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter. If an attacker ca...

DEBIAN-CVE-2023-3609

A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, u32setparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter. If an attacker...

Important: kernel

Issue Overview: 2023-08-03: CVE-2023-3609 was added to this advisory. A use-after-free flaw was found in the Netfilter subsystem of the Linux kernel when processing named and anonymous sets in batch requests, which can lead to performing arbitrary reads and writes in kernel memory. This flaw allo...

kernel: net: sched: fix memory leak in tcindex_set_parms

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix memory leak in tcindexsetparms Syzkaller reports a memory leak as follows: ==================================== BUG: memory leak unreferenced object 0xffff88810c287f00 size 256: comm "syz-executor105", pid 3600,...

SUSE CVE-2023-35788

An issue was discovered in flsetgeneveopt in net/sched/clsflower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCAFLOWERKEYENCOPTSGENEVE packets. This may result in denial of service or privilege escalation...

CVE-2023-31436

qfqchangeclass in net/sched/schqfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQMINLMAX...

GSD-2023-1002355 net: sched: sch: Bounds check priority

net: sched: sch: Bounds check priority This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.95 by commit...

The vulnerability of the atm_tc_enqueue() function in the network packet scheduling subsystem (net/sched/sch_atm.c) of the Linux kernel allows a attacker to cause a service failure.

The vulnerability of the atmtcenqueue function in the network packet scheduling subsystem net/sched/schatm.c of the Linux kernel is related to an incorrect definition of the class type. Exploiting this vulnerability could allow an attacker to cause service failures...

kernel: use-after-free due to improper update of reference count in net/sched/cls_u32.c

A use-after-free flaw was found in u32change in net/sched/clsu32.c in the network subcomponent of the Linux kernel. This flaw allows a local attacker to crash the system, cause a privilege escalation, and leak kernel information...

kernel: use-after-free in route4_change() in net/sched/cls_route.c

A flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition. This flaw allows unprivileged local users to escalate their privileges on the system. T...

PT-2022-34815 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.71 Description: The issue is related to the taprio component in the net/sched module, where offload can be disabled even if it was never enabled. The actual impact and attack plausibility have not yet been...

kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c

A use-after-free vulnerability was found in the tcnewtfilter function in net/sched/clsapi.c in the Linux kernel. The availability of local, unprivileged user namespaces allows privilege escalation...

kernel: net/sched/act_police.c infoleak

The tcfactpolicedump function in net/sched/actpolice.c in the actions implementation in the network queueing functionality in the Linux kernel before 2.6.36-rc4 does not properly initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel...