Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-5565-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5565-1 advisory. Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a rout...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-5566-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5566-1 advisory. Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a rout...

Single-Core CPU Cracked Post-Quantum Encryption Candidate Algorithm in Just an Hour

A late-stage candidate encryption algorithm that was meant to withstand decryption by powerful quantum computers in the future has been trivially cracked by using a computer running Intel Xeon CPU in an hour's time. The algorithm in question is SIKE — short for Supersingular Isogeny Key...

SUSE SLES15 Security Update : xen (SUSE-SU-2022:2591-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2591-1 advisory. - Incomplete cleanup of multi-core shared buffers for some IntelR Processors may allow an authenticated user to potentially enable...

SUSE SLES12 Security Update : xen (SUSE-SU-2022:2560-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2560-1 advisory. - Incomplete cleanup of multi-core shared buffers for some IntelR Processors may allow an authenticated user to potentially enable...

Arbitrary Code Execution

xen is vulnerable to arbitrary code execution. The vulnerability exists in hw due to Mis-trained branch predictions for return instructions which allows an attacker to inject and execute arbitrary speculative codes under certain microarchitecture-dependent conditions...

Arbitrary Code Execution

xen is vulnerable to Arbitrary Code Execution. The vulnerability exists in Spectre variant under certain microarchitecture-dependent conditions which allows an attacker to inject and execute arbitrary speculative codes...

SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2022:2382-1)

The remote SUSE Linux SLED12 / SLEDSAP12 / SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2382-1 advisory. - The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database aka d...

CVE-2022-29900

A flaw was found in hw. Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions...

CVE-2022-29900

Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions...

Design/Logic Flaw

Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions...

CVE-2022-29900

Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions...

Retbleed - arbitrary speculative code execution with return instructions

ISSUE DESCRIPTION Researchers at ETH Zurich have discovered Retbleed, allowing for arbitrary speculative execution in a victim context. For more details, see: https://comsec.ethz.ch/retbleed ETH Zurich have allocated CVE-2022-29900 for AMD and CVE-2022-29901 for Intel. Despite the similar...

CVE-2022-29901

Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under...

CVE-2022-29900

Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions...

CVE-2022-29900

Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions...

CVE-2022-29900

CVE-2022-29900 describes mis-trained branch predictions for return instructions that may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. Connected advisories confirm this affects Linux-kernel components (e.g., linux-5.10 in Astra Linux; multiple Am...

CVE-2022-29900

Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions...

AMD CPU 安全漏洞

AMD CPUs are a family of CPUs from Ultraviolet Semiconductor AMD. The AMD CPUs suffer from a security vulnerability that stems from a faulty training branch prediction of a return instruction that may allow execution of arbitrary speculative code under certain microarchitecture-related conditions...

CVE-2022-29900

Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions...