Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service

An excessive resource consumption flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. While processing SACK segments, the Linux kernel's socket buffer SKB data structure becomes fragmented, which leads to increased resource...

Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service

An excessive resource consumption flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. While processing SACK segments, the Linux kernel's socket buffer SKB data structure becomes fragmented, which leads to increased resource...

Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service

An excessive resource consumption flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. While processing SACK segments, the Linux kernel's socket buffer SKB data structure becomes fragmented, which leads to increased resource...

Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service

An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. While processing SACK segments, the Linux kernel's socket buffer SKB data structure becomes fragmented. Each fragment is about TCP maximum segment size MSS...

USN-4017-2 linux, linux-aws, linux-azure, linux-lts-trusty, linux-lts-xenial vulnerabilities

USN-4017-1 fixed vulnerabilities in the Linux kernel for Ubuntu. This update provides the corresponding updates for the Linux kernel for Ubuntu 16.04 ESM and Ubuntu 14.04 ESM. Jonathan Looney discovered that the TCP retransmission queue implementation in the Linux kernel could be fragmented when...

UBUNTU-CVE-2019-11478

Jonathan Looney discovered that the TCP retransmission queue implementation in tcpfragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel...

PT-2019-2417 · Linux +7 · Linux Kernel +7

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.4.182 Linux kernel versions prior to 4.9.182 Linux kernel versions prior to 4.14.127 Linux kernel versions prior to 4.19.52 Linux kernel versions prior to 5.1.11 Description: The issue is related to the TCP...

PT-2019-2416 · Linux +8 · Linux Kernel +8

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.4.182 Linux kernel versions prior to 4.9.182 Linux kernel versions prior to 4.14.127 Linux kernel versions prior to 4.19.52 Linux kernel versions prior to 5.1.11 Description: The issue is related to an integer...

DNSpionage group’s Karkoff malware selectively pick victims

By Ryan De Souza Karkoff creates a timeline of the command execution which can be "extremely" useful when responding to this type of threat. The IT security researchers at Cisco's Talos threat research team have discovered a new malware that has been developed by the threat actors behind the...

'Karkoff' Is the New 'DNSpionage' With Selective Targeting Strategy

The cybercriminal group behind the infamous DNSpionage malware campaign has been found running a new sophisticated operation that infects selected victims with a new variant of the DNSpionage malware. First uncovered in November last year, the DNSpionage attacks used compromised sites and crafted...

Twitter is Testing End-to-End Encrypted Direct Messages

Twitter has been adopting new trends at a snail's pace. But it's better to be late than never. Since 2013 people were speculating that Twitter will bring end-to-end encryption to its direct messages, and finally almost 5 years after the encryption era began, the company is now testing an end-to-e...

[SECURITY] Fedora 27 Update: procmail-3.22-44.fc27

Procmail can be used to create mail-servers, mailing lists, sort your incoming mail into separate folders/files real convenient when subscribing to one or more mailing lists or for prioritising your mail, preprocess your mail, start any programs upon mail arrival e.g. to generate different chimes...

kernel: Use after free in tcp_xmit_retransmit_queue

A use-after-free vulnerability was found in tcpxmitretransmitqueue and other tcp functions. This condition could allow an attacker to send an incorrect selective acknowledgment to existing connections, possibly resetting a connection...

kernel: Use after free in tcp_xmit_retransmit_queue

A use-after-free vulnerability was found in tcpxmitretransmitqueue and other tcp functions. This condition could allow an attacker to send an incorrect selective acknowledgment to existing connections, possibly resetting a connection...

kernel: Use after free in tcp_xmit_retransmit_queue

A use-after-free vulnerability was found in tcpxmitretransmitqueue and other tcp functions. This condition could allow an attacker to send an incorrect selective acknowledgment to existing connections, possibly resetting a connection...

kernel: Use after free in tcp_xmit_retransmit_queue

A use-after-free vulnerability was found in tcpxmitretransmitqueue and other tcp functions. This condition could allow an attacker to send an incorrect selective acknowledgment to existing connections, possibly resetting a connection...

Attacks On MongoDB Rise As Hijackings Continue

The number of insecure MongoDB databases being hijacked by criminals is growing according to experts who say attacks that began last week are now targeting more valuable assets. Since identifying attacks against MongoDB installations on Dec. 27, Victor Gevers, an ethical hacker and founder of GDI...

Critical kernel security update: vulnerability fixes CVE-2016-7910, CVE-2016-7911 (and other), new kernel 2.6.32-042stab120.11

This update provides a new Virtuozzo 6.0 kernel 2.6.32-042stab120.11 based on the Red Hat Enterprise Linux 6.8 kernel 2.6.32-642.6.1.el6. The new kernel provides security and stability fixes. Vulnerability id: CVE-2016-1583 Stack overflow via ecryptfs and /proc/$pid/environ. It was found that...

CVE-2016-6828

A use-after-free vulnerability was found in tcpxmitretransmitqueue and other tcp functions. This condition could allow an attacker to send an incorrect selective acknowledgment to existing connections, possibly resetting a connection...

How to Configure Default Device Access Behavior of Workspace app for Windows

This article is intended for Citrix administrators and technical teams only. Non-admin users must contact their company’s Help Desk/IT support team and can refer to CTX297149for more information. Citrix Virtual Apps and Desktops, formerly XenDesktop, fits the enterprise need to bring both VDI and...