TCP Session Hijack

kernel-rt is vulnerable to TCP session hijack attacks. The vulnerability exists as net/ipv4/tcpinput.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack...

Linux kernel - challenge ack information leak

net/ipv4/tcpinput.c in certain Linux kernel versions does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack...

SUSE SLES11 Security Update : kernel (SUSE-SU-2016:2976-1)

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. For the PowerPC64 a new 'bigmem' flavor has been added to support big Power machines. FATE319026 The following security bugs were fixed : - CVE-2016-7042: The prockeysshow function in security/keys/proc....

Amazon Linux: Security Advisory (ALAS-2016-726)

The remote host is missing an update for the SPDX-FileCopyrightText: 2016 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...

kernel: challenge ACK counter information disclosure.

It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the chang...

Debian DSA-3659-1 : linux - security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or have other impacts. - CVE-2016-5696 Yue Cao, Zhiyun Qian, Zhongjie Wang, Tuan Dao, and Srikanth V. Krishnamurthy of the University of California, Riverside; and Lisa M...

[SECURITY] [DSA 3659-1] linux security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3659-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso September 04, 2016 https://www.debian.org/security/faq -...

[SECURITY] [DLA 609-1] linux security update

Package : linux Version : 3.2.81-2 CVE ID : CVE-2016-3857 CVE-2016-4470 CVE-2016-5696 CVE-2016-5829 CVE-2016-6136 CVE-2016-6480 CVE-2016-6828 CVE-2016-7118 Debian Bug : 827561 This update fixes the CVEs described below. CVE-2016-3857 Chiachih Wu reported two bugs in the ARM OABI compatibility lay...

Debian: Security Advisory (DSA-3659-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2016 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...

Updated kernel-tmb packages fix security vulnerabilities

This update is based on the upstream 4.4.16 kernel and fixes at least theese security issues: nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c. CVE-2016-1237. The...

USN-3071-1 linux vulnerabilities

Kangjie Lu discovered an information leak in the Reliable Datagram Sockets RDS implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. CVE-2016-5244 Yue Cao et al discovered a flaw in the TCP implementation's handling of...

[slackware-security] Linux kernel

New Linux kernel packages are available for Slackware 14.2 and -current to fix a security issue. Here are the details from the Slackware 14.2 ChangeLog: patches/packages/linux-4.4.19/: Upgraded. A flaw was found in the implementation of the Linux kernels handling of networking challenge ack where...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 7.1 Extended Update Support. 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...

linux-lts: information disclosure

A security issue has been found in the Linux kernel's implementation of challenge ACKs as specified in RFC 5961. An attacker which knows a connection's client IP, server IP and server port can abuse the challenge ACK mechanism to determine the accuracy of a normally 'blind' attack on the client o...

Amazon Linux AMI : kernel (ALAS-2016-726)

It was found that nfsd is missing permissions check when setting ACL on files, this may allow a local users to gain access to any file by setting a crafted ACL. CVE-2016-1237 A flaw was found in the Linux kernel's keyring handling code, where in keyrejectandlink an uninitialised variable would...