Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a failure to perform boundary checks on user control pointers in drm-compatible ioctl paths, which could lea...

GhostRace – New Data Leak Vulnerability Affects Modern CPUs

A group of researchers has discovered a new data leakage attack impacting modern CPU architectures supporting speculative execution. Dubbed GhostRace CVE-2024-2193, it is a variation of the transient execution CPU vulnerability known as Spectre v1 CVE-2017-5753. The approach combines speculative...

Ubuntu 20.04 LTS : Firefox vulnerabilities (USN-6143-1)

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6143-1 advisory. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially explo...

CVE-2022-23960

Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer BHB to influence mispredicted branches. Then, cache allocation can allow the attacker to obtai...

SUSE: Security Advisory (SUSE-SU-2018:0131-1)

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...

New Spectre Flaws in Intel and AMD CPUs Affect Billions of Computers

When Spectre, a class of critical vulnerabilities impacting modern processors, was publicly revealed in January 2018, the researchers behind the discovery said, "As it is not easy to fix, it will haunt us for quite some time," explaining the inspiration behind naming the speculative execution...

CVE-2021-29155

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences ...

SUSE: Security Advisory (SUSE-SU-2018:0069-1)

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-2018:0114-1)

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-2018:0113-1)

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...

AZL-6525 CVE-2020-27170 affecting package kernel for versions less than 5.10.78.1-1

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This...

UBUNTU-CVE-2020-27171

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error with a resultant integer underflow affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information...

Google Releases Spectre PoC Exploit For Chrome

Google has released proof-of-concept PoC exploit code, which leverages the Spectre attack against the Chrome browser to leak data from websites. Three years after the Spectre attack was first disclosed, researchers with Google have now released a demonstration website that leverages the attack,...

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...

AMD Downplays CPU Threat Opening Chips to Data Leak Attacks

AMD is seeking to downplay side-channel attacks that can leak potentially sensitive data from its processors released between 2011 and 2019. The “Take A Way” attack, so-called by researchers with the Graz University of Technology in a new analysis this weekend, is a side-channel attack...

New PlunderVolt Attack Targets Intel SGX Enclaves by Tweaking CPU Voltage

A team of cybersecurity researchers demonstrated a novel yet another technique to hijack Intel SGX, a hardware-isolated trusted space on modern Intel CPUs that encrypts extremely sensitive data to shield it from attackers even when a system gets compromised. Dubbed Plundervolt and tracked as...

Amazon Linux 2 : java-11-openjdk (ALAS-2019-1338) (Spectre)

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions a commonly used performance optimization. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the...

Spectre attack variant can be remotely mounted to extract sensitive data

By ghostadmin What we know so far about Spectre attacks is that it relies upon execution of malicious code. The code is executed on computers having speculative-execution design flaws in processor chip; once a device is compromised, it becomes possible to obtain sensitive data such as passwords,...

NetSpectre — New Remote Spectre Attack Steals Data Over the Network

A team of security researchers has discovered a new Spectre attack that can be launched over the network, unlike all other Spectre variants that require some form of local code execution on the target system. Dubbed "NetSpectre," the new remote side-channel attack, which is related to Spectre...

CVE-2018-3640

creationtimestamp| type| source ---|---|--- 2018-05-22 07:26:30+00:00| seen| https://t.me/N0iSeBit/55 2018-06-18 10:12:13+00:00| seen| https://t.me/SecLabNews/2448 2018-10-20 18:57:59+00:00| seen| https://t.me/offzonemoscow/27 2018-12-31 06:05:10+00:00| seen|...