kernel: net/packet: slab-out-of-bounds access in packet_recvmsg()

An out-of-bounds access issue was found in the Linux kernel networking subsystem in the way raw packet sockets AFPACKET used PACKETCOPYTHRESH and mmap operations. A local attacker with CAPNETRAW capability could use this flaw to trigger a buffer overflow resulting in a system crash or privilege...

kernel: net/packet: slab-out-of-bounds access in packet_recvmsg()

An out-of-bounds access issue was found in the Linux kernel networking subsystem in the way raw packet sockets AFPACKET used PACKETCOPYTHRESH and mmap operations. A local attacker with CAPNETRAW capability could use this flaw to trigger a buffer overflow resulting in a system crash or privilege...

kernel: Use-after-free due to race condition in AF_PACKET implementation

A use-after-free flaw can occur in the Linux kernel due to a race condition between packetdobind and packetnotifier functions called for an AFPACKET socket. An unprivileged, local user could use this flaw to induce kernel memory corruption on the system, leading to an unresponsive system or to a...

kernel: Use-after-free due to race condition in AF_PACKET implementation

A use-after-free flaw can occur in the Linux kernel due to a race condition between packetdobind and packetnotifier functions called for an AFPACKET socket. An unprivileged, local user could use this flaw to induce kernel memory corruption on the system, leading to an unresponsive system or to a...

Privilege Escalation

Linux kernel is vulnerable to privilege escalation. A race condition issue leading to a use-after-free flaw was found in the way the raw packet sockets are implemented in the Linux kernel networking subsystem handling synchronization. A local user able to open a raw packet socket requires the...

Use-After-Free

Linux kernel is vulnerable to privilege escalation. A race condition issue leading to a use-after-free flaw was found in the way the raw packet sockets implementation in the Linux kernel networking subsystem handled synchronization while creating the TPACKETV3 ring buffer. A local user able to op...

Linux kernel memory misreference vulnerability (CNVD-2018-26906)

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. Linux kernel suffers from a memory misreference vulnerability. The vulnerability stems from a contention condition...

DEBIAN-CVE-2018-18559

In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanoutadd from setsockopt and bind on an AFPACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain...

UBUNTU-CVE-2018-18559

In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanoutadd from setsockopt and bind on an AFPACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain...

PT-2017-3771 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.20 Description: A use-after-free issue exists in the Linux kernel due to a race condition between fanout add from setsockopt and bind on an AF PACKET socket. This occurs because of an incomplete fix for a race...

kernel: Heap out-of-bounds read in AF_PACKET sockets

A race condition issue was found in the way the raw packet socket implementation in the Linux kernel networking subsystem handled synchronization. A local user able to open a raw packet socket requires the CAPNETRAW capability could use this to waste resources in the kernel's ring buffer or...

kernel: Heap out-of-bounds read in AF_PACKET sockets

A race condition issue was found in the way the raw packet socket implementation in the Linux kernel networking subsystem handled synchronization. A local user able to open a raw packet socket requires the CAPNETRAW capability could use this to waste resources in the kernel's ring buffer or...

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

An update for kernel-rt is now available for Red Hat Enterprise Linux 7. 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 available for each vulnerability from...

kernel: Heap out-of-bounds read in AF_PACKET sockets

A race condition issue was found in the way the raw packet socket implementation in the Linux kernel networking subsystem handled synchronization. A local user able to open a raw packet socket requires the CAPNETRAW capability could use this to waste resources in the kernel's ring buffer or...

DEBIAN-CVE-2017-1000111

Linux kernel: heap out-of-bounds in AFPACKET sockets. This new issue is analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packetsetring. Previously with PACKETVERSION. This time with PACKETRESERVE. The solution...

Virtuozzo 7 : readykernel-patch (VZA-2017-072)

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - A race condition issue leading to a use-after-free flaw was found in the way the raw packet sockets are implemented ...

UBUNTU-CVE-2017-1000111

Linux kernel: heap out-of-bounds in AFPACKET sockets. This new issue is analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packetsetring. Previously with PACKETVERSION. This time with PACKETRESERVE. The solution...

PT-2017-3105 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a heap out-of-bounds condition in AF PACKET sockets, similar to a previously disclosed problem. It involves a race condition between a socket option that change...

Exploiting the Linux kernel via packet sockets

Guest blog post, posted by Andrey Konovalov Introduction Lately I’ve been spending some time fuzzing network-related Linux kernel interfaces with syzkaller. Besides the recently discovered vulnerability in DCCP sockets, I also found another one, this time in packet sockets. This post describes ho...

kernel, perf, python security update

CentOS Errata and Security Advisory CESA-2017:0386 An update for kernel is now available for Red Hat Enterprise Linux 7. 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...