SUSE SLES12: qemu / qemu-arm / qemu-block-curl / qemu-block-iscsi / etc (SUSE-SU-2021:2563-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2563-1 advisory. Security issues fixed: - CVE-2021-3595: Fixed slirp: invalid pointer initialization may lead to information disclosure tftp...

The vulnerability of the virtualization paravirtualization mode implementation in Xen hypervisors allows a malicious actor to gain unauthorized access to protected information.

The vulnerability of the PV mode implementation in Xen hypervisors relates to the use of the Indirect Branch Restricted Speculation IBRS mechanism for indirect branch control. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...

CVE-2021-3593

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6input function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or...

CVE-2021-3593

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6input function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or...

CVE-2021-3594

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udpinput function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or...

DEBIAN-CVE-2021-28689

x86: Speculative vulnerabilities with bare non-shim 32-bit PV guests 32-bit x86 PV guest kernels run in ring 1. At the time when Xen was developed, this area of the i386 architecture was rarely used, which is why Xen was able to use it to implement paravirtualisation, Xen's novel approach to...

CVE-2021-28689

x86: Speculative vulnerabilities with bare non-shim 32-bit PV guests 32-bit x86 PV guest kernels run in ring 1. At the time when Xen was developed, this area of the i386 architecture was rarely used, which is why Xen was able to use it to implement paravirtualisation, Xen's novel approach to...

Design/Logic Flaw

x86: Speculative vulnerabilities with bare non-shim 32-bit PV guests 32-bit x86 PV guest kernels run in ring 1. At the time when Xen was developed, this area of the i386 architecture was rarely used, which is why Xen was able to use it to implement paravirtualisation, Xen's novel approach to...

CVE-2021-28689

x86: Speculative vulnerabilities with bare non-shim 32-bit PV guests 32-bit x86 PV guest kernels run in ring 1. At the time when Xen was developed, this area of the i386 architecture was rarely used, which is why Xen was able to use it to implement paravirtualisation, Xen's novel approach to...

UBUNTU-CVE-2021-28689

x86: Speculative vulnerabilities with bare non-shim 32-bit PV guests 32-bit x86 PV guest kernels run in ring 1. At the time when Xen was developed, this area of the i386 architecture was rarely used, which is why Xen was able to use it to implement paravirtualisation, Xen's novel approach to...

hw: improper isolation of shared resources in some Intel Processors

Microcode misconfiguration in some Intel processors may cause EIBRS mitigation CVE-2017-5715 to be incomplete. As a consequence, this issue may allow an authenticated user to potentially enable information disclosure via local access...

hw: improper isolation of shared resources in some Intel Processors

Microcode misconfiguration in some Intel processors may cause EIBRS mitigation CVE-2017-5715 to be incomplete. As a consequence, this issue may allow an authenticated user to potentially enable information disclosure via local access...

SUSE: Security Advisory (SUSE-SU-2018:2189-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

Speculative Execution and Indirect Branch Prediction Side Channel Analysis Method

Summary: Updated Recommendations Section 04/04/2018 Today a team of security researchers disclosed several software analysis methods that, when used for malicious purposes, have the potential to improperly gather sensitive data from many types of computing devices with many different vendors’...

SUSE: Security Advisory (SUSE-SU-2017:1675-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

SUSE: Security Advisory (SUSE-SU-2020:1713-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

SUSE: Security Advisory (SUSE-SU-2018:1571-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

A vulnerability in the arch/x86/kernel/paravirt.c file of the Linux operating system allows a hacker to gain access to confidential data.

The vulnerability in the arch/x86/kernel/paravirt.c file of the Linux operating system is related to incorrect handling of indirect calls. Exploiting this vulnerability can allow an attacker to gain access to confidential data...

A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.

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A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.

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