CVE-2020-10768

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 threa...

CVE-2020-10768

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 threa...

CVE-2020-10767

CVE-2020-10767 affects the Linux kernel before 5.8-rc1, where Enhanced IBPB mitigation is disabled when STIBP is unavailable or when IBRS is available, enabling a Spectre V2–style attack on local confidentiality. Connected advisories confirm Linux kernel mitigations (IBPB/SSBD) and note a patched...

CVE-2020-10767

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 loc...

CVE-2020-10767

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 loc...

EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1892)

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - In calcvmmayflags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5805)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5805 advisory. - x86/speculation: Avoid force-disabling IBPB based on STIBP and enhanced IBRS. Anthony Steinhauser Orabug: 31557802 CVE-2020-10767 - fs/binfmtelf....

Missing Linux Kernel mitigations for 'Spectre variant 2' hardware vulnerabilities

The remote host is missing one or more known mitigations on Linux Kernel side for the referenced SPDX-FileCopyrightText: 2020 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-onl...

Missing Linux Kernel mitigations for 'Spectre variant 1' hardware vulnerabilities

The remote host is missing one or more known mitigations on Linux Kernel side for the referenced SPDX-FileCopyrightText: 2020 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-onl...

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5804)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5804 advisory. - fs/binfmtelf.c: allocate initialized memory in fillthreadcoreinfo Alexander Potapenko Orabug: 31350638 CVE-2020-10732 - net-sysfs: call devhold if...

Security Bulletin: Publicly disclosed vulnerabilities from Kernel affect IBM Netezza Host Management

Summary Kernel is used by IBM Netezza Host Management. IBM Netezza Host Management has addressed the applicable CVEs Vulnerability Details CVEID: CVE-2019-18660 DESCRIPTION: Linux Kernel for PowerPC could allow a local authenticated attacker to obtain sensitive information, caused by the failure ...

Intel, ARM, IBM, AMD Processors Vulnerable to New Side-Channel Attacks

It turns out that the root cause behind several previously disclosed speculative execution attacks against modern processors, such as Meltdown and Foreshadow, was misattributed to 'prefetching effect,' resulting in hardware vendors releasing incomplete mitigations and countermeasures. Sharing its...

RHEL 8 : kernel (RHSA-2020:1372)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1372 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: powerpc: local user can read...

kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available.

A flaw was found in the Linux kernel’s 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 perfo...

kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command.

A flaw was found 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...

SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2105-1)

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2019-19462: relayopen in kernel/relay.c in the Linux kernel allowed local users to cause a denial of service such as relay blockage by triggering a NULL...

kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command.

A flaw was found 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...

kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available.

A flaw was found in the Linux kernel’s 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 perfo...

kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available.

A flaw was found in the Linux kernel’s 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 perfo...

kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command.

A flaw was found 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...