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...

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...

PT-2019-12529

Name of the Vulnerable Software and Affected Versions SoftEther VPN Server versions up to 4.29 See.sys up to version 4.25 Description The issue allows a user to call an IOCTL, specifying any kernel address to which arbitrary bytes are written. This can potentially lead to unauthorized access and...

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 ...

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...

CVE-2019-5606

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-2019-5605

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...

CVE-2019-5605: Improper Initialization

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...

PT-2019-17774 · Freebsd · Freebsd

Name of the Vulnerable Software and Affected Versions: FreeBSD versions 11.2-RELEASE before 11.2-RELEASE-p12 FreeBSD versions 11.3-RELEASE before 11.3-RELEASE-p1 FreeBSD versions 11.3-STABLE before r350217 Description: The issue is related to insufficient initialization of memory copied to userla...

FreeBSD-SA-19:14.freebsd32

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-19:14.freebsd32 Security Advisory The FreeBSD Project Topic: Kernel memory disclosure in freebsd32ioctl Category: core Module: kernel Announced: 2019-07-24...

FreeBSD -- Kernel memory disclosure in freebsd32_ioctl

Problem Description: 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 kern...

FreeBSD -- pts(4) write-after-free

Problem Description: 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 b...

FreeBSD Privilege Permission and Access Control Issues Vulnerability

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A security vulnerability exists in the cdrom driver in FreeBSD. An attacker can exploit this vulnerability to arbitrarily overwrite kernel memory and gain root privileges...

CVE-2019-5602

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory whe...

CVE-2019-5602

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory whe...

Design/Logic Flaw

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory whe...

CVE-2019-5602

Summary (CVE-2019-5602): A privilege-escalation flaw in the FreeBSD cd(4) driver affects multiple releases (11.2-RELEASE prior to 11.2-RELEASE-p11, 11.3-RC3 prior to 11.3-RC3-p1, 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, and related 11.x/12.x lines). A bug in the ioctl path...