USN-4095-2: Linux kernel (Xenial HWE) vulnerabilities

USN-4095-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4076-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4076-1 advisory. It was discovered that a race condition existed in the Serial Attached SCSI SAS implementation in the Linux kernel. A local attacker could possibly use...

USN-4076-1: Linux kernel vulnerabilities

It was discovered that a race condition existed in the Serial Attached SCSI SAS implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service system crash or execute arbitrary code. CVE-2018-20836 It was discovered that the ext4 file system implementati...

The vulnerabilities of Intel and ARM processors, related to the use of speculative read operations on system registers, allow attackers to exploit these vulnerabilities to disclose protected information.

The vulnerabilities of Intel and ARM processors are related to the use of speculative read operations for system registers. Exploiting these vulnerabilities can allow attackers to disclose system parameters through a specially crafted application...

The vulnerabilities of Intel, ARM, and AMD processors stem from the unique workings of the branch prediction module, which allows attackers to exploit the protected information.

The vulnerabilities of Intel, ARM, and AMD processors are related to the characteristics of the branch prediction module’s operation. Exploiting these vulnerabilities allows attackers to disclose confidential information by creating conditions for incorrect branch predictions...

Google Boosts Encryption For Low-End Android Devices

Google introduced a new storage encryption solution that it hopes will expand security efforts across its full spectrum of Android-powered devices – including low-end devices that typically can’t support encryption. The new encryption offering, Adiantum, aims to solve a big issue that has plagued...

x86: DoS from attempting to use INVPCID with a non-canonical addresses

ISSUE DESCRIPTION The INVPCID instruction raises GP0 if an attempt is made to invalidate a non-canonical address. Older flushing mechanisms such as INVLPG tolerate this without error, and perform no action. There is one guest accessible path in Xen where a non-canonical address was passed into th...

7 New Meltdown and Spectre-type CPU Flaws Affect Intel, AMD, ARM CPUs

Disclosed earlier this year, potentially dangerous Meltdown and Spectre vulnerabilities that affected a large family of modern processors proven that speculative execution attacks can be exploited in a trivial way to access highly sensitive information. Since then, several more variants of...

Side-Channel PoC Attack Lifts Private RSA Keys from Mobile Phones

Researchers have developed a proof-of-concept side-channel attack that allows them to pull encryption keys from a single decryption for a modern version of OpenSSL. The attack impacts mobile devices — without physical access to the handsets. A group of researchers at Georgia Tech were able to...

Speculative register leakage from lazy FPU context switching

ISSUE DESCRIPTION x86 has a hardware mechanism for lazy FPU context switching. On a task switch, %cr0.ts Task Switched gets set, and the next instruction to touch floating point state raises an NM No Math, later known as Device Not Available exception. Traditionally, FPU state has been large in...

New Spectre (Variant 4) CPU Flaw Discovered—Intel, ARM, AMD Affected

Security researchers from Microsoft and Google have discovered a fourth variant of the data-leaking Meltdown-Spectre security flaws impacting modern CPUs in millions of computers, including those marketed by Apple. Variant 4 comes weeks after German computer magazine Heise reported about a set of...

Microsoft Guidance for Speculative Store Bypass

Executive summary On January 3, 2018, Microsoft released an advisory and security updates related to a newly-discovered class of hardware vulnerabilities known as Spectre and Meltdown involving speculative execution side channels that affect AMD, ARM, and Intel CPUs to varying degrees. On May 21s...

8 New Spectre-Class Vulnerabilities (Spectre-NG) Found in Intel CPUs

A team of security researchers has reportedly discovered a total of eight new "Spectre-class" vulnerabilities in Intel CPUs, which also affect at least a small number of ARM processors and may impact AMD processor architecture as well. Dubbed Spectre-Next Generation, or Spectre-NG, the partial...

8 New Spectre-Class Vulnerabilities (Spectre-NG) Found in Intel CPUs

A team of security researchers has reportedly discovered a total of eight new "Spectre-class" vulnerabilities in Intel CPUs, which also affect at least a small number of ARM processors and may impact AMD processor architecture as well. Dubbed Spectre-Next Generation , or Spectre-NG , the partial...

The vulnerabilities of Intel, ARM, and AMD processors stem from the unique workings of the branch prediction module, which allows attackers to exploit the protected information.

The vulnerabilities of Intel, ARM, and AMD processors are related to the characteristics of the branch prediction module’s operation. Exploiting these vulnerabilities allows attackers to gain access to protected memory from a program that does not have the necessary privileges, by creating...

The vulnerability of Intel and ARM processors is caused by a memory access control error during speculative execution of processor instructions, allowing attackers to disclose protected information.

The vulnerabilities of Intel and ARM processors stem from errors in memory access control during speculative execution of processor instructions. Exploiting these vulnerabilities allows attackers to gain access to protected memory from a program that does not have the necessary privileges. This i...

HPESBHF03805 rev.24 - Certain HPE products using Microprocessors from Intel, AMD, and ARM, with Speculative Execution, Elevation of Privilege and Information Disclosure (CVE-2017-5715, CVE-2017-5753, CVE-2017-5754)

Potential Security Impact: Local: Disclosure of Information, Elevation of Privilege SUPPORTED SOFTWARE VERSIONS: ONLY impacted versions are listed. HPE ProLiant DL120 Gen10 Server - prior to 1.3202-01-201816 Feb 2018 HPE ProLiant DL160 Gen10 Server - prior to 1.3202-01-201816 Feb 2018 HPE ProLian...

Design/Logic Flaw

Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last level cache of modern ARM processors. By performing a side-channel attack on the MMU operations, it is possible to leak data and code pointers from JavaScript, breaking ASLR...

CVE-2017-5927

Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last level cache of modern ARM processors. By performing a side-channel attack on the MMU operations, it is possible to leak data and code pointers from JavaScript, breaking ASLR...

CVE-2017-5927

CVE-2017-5927 affects ARM processors where page table walks by the MMU during virtual-to-physical address translation leave traces in the last-level cache. A side-channel attack via JavaScript can infer memory and code pointers, breaking ASLR. The linked SUSE entry and related coverage confirm th...