Researchers Uncover First Native Spectre v2 Exploit Against Linux Kernel

Cybersecurity researchers have disclosed what they say is the "first native Spectre v2 exploit" against the Linux kernel on Intel systems that could be exploited to read sensitive data from the memory. The exploit, called Native Branch History Injection (BHI), can be used to leak arbitrary kernel memory at 3.5 kB/sec by bypassing existing Spectre v2/BHI mitigations, researchers from Systems and

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 systems are equally vulnerable to Rowhammer as Intel systems, which greatly increases the attack

Most Sophisticated iPhone Hack Ever Exploited Apple's Hidden Hardware Feature

The Operation Triangulation spyware attacks targeting Apple iOS devices leveraged never-before-seen exploits that made it possible to even bypass pivotal hardware-based security protections erected by the company. Russian cybersecurity firm Kaspersky, which discovered the campaign at the beginning of 2023 after becoming one of the targets, described it as

Collide+Power, Downfall, and Inception: New Side-Channel Attacks Affecting Modern CPUs

Cybersecurity researchers have disclosed details of a trio of side-channel attacks that could be exploited to leak sensitive data from modern CPUs. Called Collide+Power (CVE-2023-20583), Downfall (CVE-2022-40982), and Inception (CVE-2023-20569), the novel methods follow the disclosure of another newly discovered security vulnerability affecting AMD's Zen 2 architecture-based processors known as 

Zenbleed: New Flaw in AMD Zen 2 Processors Puts Encryption Keys and Passwords at Risk

A new security vulnerability has been discovered in AMD's Zen 2 architecture-based processors that could be exploited to extract sensitive data such as encryption keys and passwords. Discovered by Google Project Zero researcher Tavis Ormandy, the flaw – codenamed Zenbleed and tracked as CVE-2023-20593 (CVSS score: 6.5) – allows data exfiltration at the rate of 30 kb per core, per second. The

China Bans U.S. Chip Giant Micron, Citing "Serious Cybersecurity Problems"

China has banned U.S. chip maker Micron from selling its products to Chinese companies working on key infrastructure projects, citing national security risks. The development comes nearly two months after the country's cybersecurity authority initiated a probe in late March 2023 to assess potential network security risks. "The purpose of this network security review of Micron's products is to