Fedora 30 : xen (2019-cbb732f760)

add missing XSA-299 patches x86: Machine Check Error on Page Size Change DoS XSA-304, CVE-2018-12207 TSX Asynchronous Abort speculative side channel XSA-305, CVE-2019-11135 ---- VCPUOPinitialise DoS XSA-296, CVE-2019-18420 missing descriptor table limit checking in x86 PV emulation XSA-298,...

Kernel: KVM: potential use-after-free via kvm_ioctl_create_device()

A use-after-free vulnerability was found in the way the Linux kernel's KVM hypervisor implements its device control API. While creating a device via kvmioctlcreatedevice, the device holds a reference to a VM object, later this reference is transferred to the caller's file descriptor table. If suc...

The vulnerability of the FreeIPA service component of the Astra Linux operating system allows a hacker to execute arbitrary code or cause a service failure.

The vulnerability of the FreeIPA service component in the Astra Linux operating system is related to an error in processing the contents of file descriptors. Exploiting this vulnerability could allow a remote attacker to execute arbitrary code or cause service failures...

Fedora 29 : xen (2019-865bb16900)

VCPUOPinitialise DoS XSA-296, CVE-2019-18420 missing descriptor table limit checking in x86 PV emulation XSA-298, CVE-2019-18425 Issues with restartable PV type change operations XSA-299, CVE-2019-18421 1767726 add-to-physmap can be abused to DoS Arm hosts XSA-301, CVE-2019-18423 passed through P...

Debian: Security Advisory (DSA-4567-1)

The remote host is missing an update for the Debian 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...

edk2 security, bug fix, and enhancement update

20190308git89910a39dcfd-6.el8 - edk2-ArmVirtPkg-silence-DEBUGVERBOSE-masking-0x00400000-.patch bz1714446 - edk2-OvmfPkg-QemuRamfbDxe-Do-not-report-DXE-failure-on-Aa.patch bz1714446 - edk2-ArmPkg-DebugPeCoffExtraActionLib-debugger-commands-a.patch bz1714446 - Resolves: bz1714446 edk2-aarch64 silen...

Debian DSA-4567-1 : dpdk - security update

It was discovered that the vhost PMD in DPDK, a set of libraries for fast packet processing, was affected by memory and file descriptor leaks which could result in denial of service. C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Debian...

USN-4186-1 linux, linux-aws, linux-kvm vulnerabilities

Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Giorgi Maisuradze, Moritz Lipp, Michael Schwarz, Daniel Gruss, and Jo Van Bulck discovered that Intel processors using Transactional Synchronization Extensions TSX could expose...

[SECURITY] [DSA 4567-1] dpdk security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4567-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff November 12, 2019 https://www.debian.org/security/faq -...

CVE-2019-18684

Sudo through 1.8.29 allows local users to escalate to root if they have write access to file descriptor 3 of the sudo process. This occurs because of a race condition between determining a uid, and the setresuid and openat system calls. The attacker can write "ALL ALL=ALL NOPASSWD:ALL" to...

CVE-2019-17451

An issue was discovered in the Binary File Descriptor BFD library aka libbfd, as distributed in GNU Binutils 2.32. It is an integer overflow leading to a SEGV in bfddwarf2findnearestline in dwarf2.c, as demonstrated by nm...

CVE-2019-18425

A flaw was in Xen. Guest specified limits for descriptor table access, during PV guest operations, were found to not be enforced. An attacker with the ability to emulate 32-bit guest user mode calls through call gates, would be allowed to install and then use descriptors of their choice as long a...

EulerOS 2.0 SP8 : binutils (EulerOS-SA-2019-2099)

According to the versions of the binutils packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An issue was discovered in the Binary File Descriptor BFD library aka libbfd, as distributed in GNU Binutils 2.31. An invalid memory address...

CVE-2013-1889

modruid2 before 0.9.8 improperly handles file descriptors which allows remote attackers to bypass security using a CGI script to break out of the chroot...

CVE-2013-1889

modruid2 before 0.9.8 improperly handles file descriptors which allows remote attackers to bypass security using a CGI script to break out of the chroot...

Xen Project Descriptor Table Limit Checking Privilege Escalation Vulnerability (XSA-298)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a privilege escalation vulnerability due to improper bounds checking for descriptor table accesses. An authenticated attacker, in user mode on a 32-bit guest, could leverage this...

kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS

A flaw was discovered in the Linux kernel's USB subsystem in the usbgetextradescriptor function in the drivers/usb/core/usb.c which mishandles a size check during the reading of an extra descriptor data. By using a specially crafted USB device which sends a forged extra descriptor, an unprivilege...

kernel: use-after-free in arch/x86/lib/insn-eval.c

A vulnerability was found in the arch/x86/lib/insn-eval.c function in the Linux kernel. An attacker could corrupt the memory due to a flaw in use-after-free access to an LDT entry caused by a race condition between modifyldt and a BR exception for an MPX bounds violation...

kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS

A flaw was discovered in the Linux kernel's USB subsystem in the usbgetextradescriptor function in the drivers/usb/core/usb.c which mishandles a size check during the reading of an extra descriptor data. By using a specially crafted USB device which sends a forged extra descriptor, an unprivilege...

kernel: use-after-free in arch/x86/lib/insn-eval.c

A vulnerability was found in the arch/x86/lib/insn-eval.c function in the Linux kernel. An attacker could corrupt the memory due to a flaw in use-after-free access to an LDT entry caused by a race condition between modifyldt and a BR exception for an MPX bounds violation...