New ZenHammer Attack Bypasses Rowhammer Defenses on AMD CPUs

Cybersecurity researchers from ETH Zurich have developed a new variant of the RowHammer DRAM dynamic random-access memory attack that, for the first time, successfully works against AMD Zen 2 and Zen 3 systems despite mitigations such as Target Row Refresh TRR. "This result proves that AMD system...

OpenBSD OpenSSH <= 9.6 Authentication Bypass Vulnerability

OpenBSD OpenSSH is prone to an authentication bypass vulnerability. Note: This VT has been deprecated and is therefore no longer functional. Please see the solution tag for more information. SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced...

CVE-2023-51767

An authentication bypass vulnerability was found in OpenSSH. When common types of DRAM memory are used, it might allow row hammer attacks because the integer value of authenticated authpassword does not resist flips of a single bit. Mitigation Mitigation for this issue is either not available or...

CVE-2023-51767

OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks for authentication bypass because the integer value of authenticated in mmanswerauthpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim...

CVE-2023-51767

OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks for authentication bypass because the integer value of authenticated in mmanswerauthpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim...

CVE-2023-51767

CVE-2023-51767 — IBM’s connected bulletin confirms a vulnerability mapped to the OpenSSH/OpenSSH-derived issue in OpenSSH up to version 10.0, where row hammer attacks on common DRAM types could enable authentication bypass. Root cause per the bulletin: the integer value of authenticated in mm_ans...

CVE-2023-51767

OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks for authentication bypass because the integer value of authenticated in mmanswerauthpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim...

SUSE SLES15 Security Update : kernel-firmware (SUSE-SU-2023:4665-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4665-1 advisory. Update AMD ucode to 20231030 bsc1215831: - CVE-2022-23820: Failure to validate the AMD SMM communication buffer may allow an attack...

SUSE: Security Advisory (SUSE-SU-2023:4665-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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-2023:4654-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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 CVE-2021-46774

Insufficient DRAM address validation in System Management Unit SMU may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service...

SUSE CVE-2023-20533

Insufficient DRAM address validation in System Management Unit SMU may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service...

CVE-2021-46774

Insufficient DRAM address validation in System Management Unit SMU may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service...

CVE-2021-46774

Insufficient DRAM address validation in System Management Unit SMU may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service...

Authorization

Insufficient DRAM address validation in System Management Unit SMU may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service...

Authorization

Insufficient DRAM address validation in System Management Unit SMU may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service...

CVE-2023-20533

CVE-2023-20533 is documented in multiple trusted sources as a vulnerability in the AMD SMU/ASP ecosystem: it describes insufficient DRAM address validation in the System Management Unit (SMU), which may allow a DMA attacker to read/write invalid DRAM addresses and could lead to denial of service....

CVE-2023-20533

Insufficient DRAM address validation in System Management Unit SMU may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service...

CVE-2021-46774

CVE-2021-46774 describes insufficient input validation in the AMD ABL, enabling a privileged attacker to perform arbitrary DRAM writes and potentially execute code or escalate privileges. Connected advisories confirm this vulnerability is among issues addressed by AMD/PI firmware updates and kern...

CVE-2021-46774

Insufficient DRAM address validation in System Management Unit SMU may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service...