Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel (AWS) vulnerability (USN-4096-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4096-1 advisory. Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local...

USN-4096-1 linux-aws, linux-aws-hwe vulnerability

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information kernel memory...

USN-4096-1: Linux kernel (AWS) vulnerability

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information kernel memory...

FreeBSD : FreeBSD -- Kernel memory disclosure in freebsd32_ioctl (6b856e00-b30a-11e9-a87f-a4badb2f4699)

Due to insufficient initialization of memory copied to userland in the components listed above small amounts of kernel memory may be disclosed to userland processes. Impact : A user who can invoke 32-bit FreeBSD ioctls may be able to read the contents of small portions of kernel memory. Such memo...

NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0044)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has kernel packages installed that are affected by multiple vulnerabilities: - A buffer overflow vulnerability due to a lack of input filtering of incoming fragmented datagrams was found in the IP-over-1394 driver firewire-net ...

FreeBSD : FreeBSD -- Privilege escalation in cd(4) driver (14a3b376-b30a-11e9-a87f-a4badb2f4699)

To implement one particular ioctl, the Linux emulation code used a special interface present in the cd4 driver which allows it to copy subchannel information directly to a kernel address. This interface was erroneously made accessible to userland, allowing users with read access to a cd4 device t...

FreeBSD : FreeBSD -- pts(4) write-after-free (5721ae65-b30a-11e9-a87f-a4badb2f4699)

The code which handles a close2 of a descriptor created by posixopenpt2 fails to undo the configuration which causes SIGIO to be raised. This bug can lead to a write-after-free of kernel memory. Impact : The bug permits malicious code to trigger a write-after-free, which may be used to gain root...

kernel: use-after-free Read in vhost_transport_send_pkt

A flaw was found where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. A race condition between connect and close function may allow an attacker using the AFVSOCK protocol to gather a 4 byte information leak or possibly impersonate AFVSOCK messages...

kernel: Information leak in cdrom_ioctl_drive_status

An information leak was discovered in the Linux kernel in cdromioctldrivestatus function in drivers/cdrom/cdrom.c that could be used by local attackers to read kernel memory at certain location...

SWAPGS Attack — New Speculative Execution Flaw Affects All Modern Intel CPUs

A new variant of the Spectre Variant 1 side-channel vulnerability has been discovered that affects all modern Intel CPUs, and probably some AMD processors as well, which leverage speculative execution for high performance, Microsoft and Red Hat warned. Identified as CVE-2019-1125, the vulnerabili...

kernel: use-after-free Read in vhost_transport_send_pkt

A flaw was found where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. A race condition between connect and close function may allow an attacker using the AFVSOCK protocol to gather a 4 byte information leak or possibly impersonate AFVSOCK messages...

kernel: Information leak in cdrom_ioctl_drive_status

An information leak was discovered in the Linux kernel in cdromioctldrivestatus function in drivers/cdrom/cdrom.c that could be used by local attackers to read kernel memory at certain location...

Ubuntu: Security Advisory (USN-4069-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2019 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...

CVE-2019-11868

See.sys, up to version 4.25, in SoftEther VPN Server versions 4.29 or older, allows a user to call an IOCTL specifying any kernel address to which arbitrary bytes are written to...

kernel: Exploitable memory corruption due to UFO to non-UFO path switch

An exploitable memory corruption flaw was found in the Linux kernel. The append path can be erroneously switched from UFO to non-UFO in ipufoappenddata when building an UFO packet with MSGMORE option. If unprivileged user namespaces are available, this flaw can be exploited to gain root privilege...

Design/Logic Flaw

In FreeBSD 11.3-STABLE before r350217, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, due to insufficient initialization of memory copied to userland in the freebsd32ioctl interface, small amounts of kernel memory may be disclosed to userland processes. This may...

Design/Logic Flaw

In FreeBSD 12.0-STABLE before r349805, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r349806, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, code which handles close of a descriptor created by posixopenpt fails to undo a signal configuration. This causes ...

CVE-2019-5606

Removed by vendor...

CVE-2019-5605

In FreeBSD 11.3-STABLE before r350217, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, due to insufficient initialization of memory copied to userland in the freebsd32ioctl interface, small amounts of kernel memory may be disclosed to userland processes. This may...

FreeBSD freebsd32 Information Disclosure Vulnerability

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A security vulnerability exists in FreeBSD freebsd32. A local attacker can exploit this vulnerability to read the contents of a portion of kernel memory...