kernel: Use-after-free in userfaultfd_event_wait_completion function in userfaultfd.c

A flaw was found in the Linux kernel's handling of fork failure when dealing with event messages in the userfaultfd code. Failure to fork correctly can create a fork event that will be removed from an already freed list of events...

UBUNTU-CVE-2017-18200

The f2fs implementation in the Linux kernel before 4.14 mishandles reference counts associated with f2fswaitdiscardbios calls, which allows local users to cause a denial of service BUG, as demonstrated by fstrim...

ICMPExfil - Exfiltrate data with ICMP

ICMP Exfil allows you to transmit data via valid ICMP packets. You use the client script to pass in data you wish to exfiltrate, then on the device you're transmitting to you run the server. Anyone watching-- human or security system-- will just see valid ICMP packets, there's nothing malicious...

await vs return vs return await

When writing async functions, there are differences between await vs return vs return await, and picking the right one is important. Let's start with this async function: async function waitAndMaybeReject // Wait one second await new Promiser = setTimeoutr, 1000; // Toss a coin const isHeads =...

kernel: Reachable BUG_ON from userspace in sctp_wait_for_sndbuf

It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUGON in sctpwaitforsndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread...

Reliability and scalability improvements in TCP/IP for Windows 8.1 and Windows Server 2012 R2

Reliability and scalability improvements in TCP/IP for Windows 8.1 and Windows Server 2012 R2 Summary This article describes various network and computer issues that occur when TCP ephemeral ports are exhausted in Windows 8.1 or Windows Server 2012 R2. An update is available to fix these issues...

Linux kernel local denial of service vulnerability (CNVD-2017-02604)

The Linux kernel is the kernel used by the operating system Linux, released by the Linux Foundation in the United States. A local denial of service vulnerability exists in Linux kernel prior to version 4.10.1, where a local attacker can cause a denial of service invalid unlock and double release...

UBUNTU-CVE-2017-6353

net/sctp/socket.c in the Linux kernel through 4.10.1 does not properly restrict association peel-off operations during certain wait states, which allows local users to cause a denial of service invalid unlock and double free via a multithreaded application. NOTE: this vulnerability exists because...

UBUNTU-CVE-2017-5986

Race condition in the sctpwaitforsndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11 allows local users to cause a denial of service assertion failure and panic via a multithreaded application that peels off an association in a certain buffer-full state...

The vulnerability of the NX-OS network operating system allows a hacker to induce a maintenance failure.

The vulnerability of the NX-OS network operating system is related to resource management errors. Exploiting this vulnerability allows a malicious actor to trigger a service failure TCP stack reboot by sending TCP packets to the device during the TIMEWAIT TCP session...

Cisco NX-OS Software Denial of Service Vulnerability (CNVD-2016-01460)

Cisco NX-OS is a data center-class operating system. A security vulnerability exists in the TCP stack of Cisco NX-OS Software that originates from the incorrect handling of packets within a TCP session when the affected device is in the TIMEWAIT state. Exploitation of this vulnerability by an...

CVE-2016-1353

The TCP implementation in Cisco Videoscape Distribution Suite for Internet Streaming VDS-IS 3.30, 3.31, 4.00, and 4.10 does not properly initiate new TCP sessions when a previous session is in a FIN wait state, which allows remote attackers to cause a denial of service TCP outage via vectors...

[SECURITY] Fedora 22 Update: ntp-4.2.6p5-33.fc22

The Network Time Protocol NTP is used to synchronize a computer's time with another reference time source. This package includes ntpd a daemon which continuously adjusts system time and utilities used to query and configure the ntpd daemon. Perl scripts ntp-wait and ntptrace are in the ntp-perl...

[SECURITY] Fedora 20 Update: ntp-4.2.6p5-22.fc20

The Network Time Protocol NTP is used to synchronize a computer's time with another reference time source. This package includes ntpd a daemon which continuously adjusts system time and utilities used to query and configure the ntpd daemon. Perl scripts ntp-wait and ntptrace are in the ntp-perl...

UBUNTU-CVE-2015-2706

Race condition in the AsyncPaintWaitEvent::AsyncPaintWaitEvent function in Mozilla Firefox before 37.0.2 allows remote attackers to execute arbitrary code or cause a denial of service use-after-free via a crafted plugin that does not properly complete initialization...

[SECURITY] Fedora 20 Update: ntp-4.2.6p5-19.fc20

The Network Time Protocol NTP is used to synchronize a computer's time with another reference time source. This package includes ntpd a daemon which continuously adjusts system time and utilities used to query and configure the ntpd daemon. Perl scripts ntp-wait and ntptrace are in the ntp-perl...

DEBIAN-CVE-2014-0205

The futexwait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requeue operations, which allows local users to cause a denial of service use-after-free and system crash or possibly gain privileges via a crafted application th...

UBUNTU-CVE-2014-0205

The futexwait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requeue operations, which allows local users to cause a denial of service use-after-free and system crash or possibly gain privileges via a crafted application th...

PT-2014-3535 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 2.6.37 Description: The issue is related to the futex wait function in kernel/futex.c, which does not properly maintain a certain reference count during requeue operations. This can be exploited by local users t...

Oracle Linux 5 / 6 : unbreakable enterprise kernel (ELSA-2014-3054)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-3054 advisory. - filter: prevent nla extensions to peek beyond the end of the message Mathias Krause Orabug: 19315783 CVE-2014-3144 CVE-2014-3145 - futex: Forbid...