#amd

A race condition in the Linux kernel before 5.5.7 involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fault.

Linus Torvalds says Retbleed has been addressed in the Linux kernel, but code complexity means the release will be delayed by a week to give more time for testing.

With speculative execution attacks remaining a stubbornly persistent vulnerability ailing modern processors, new research has highlighted an "industry failure" to adopting mitigations released by AMD and Intel, posing a firmware supply chain threat. Dubbed FirmwareBleed by Binarly, the information leaking assaults stem from the continued exposure of microarchitectural attack surfaces on the part

Plus: A wild Indian cricket scam, an elite CIA hacker is found guilty of passing secrets to WikiLeaks, and more of the week's top security news.

"Retbleed" bypasses a commonly used mechanism for protecting against a certain kind of side-channel attack.

The exploit can leak password information and other sensitive material, but the chipmakers are rolling out mitigations.

Security researchers have uncovered yet another vulnerability affecting numerous older AMD and Intel microprocessors that could bypass current defenses and result in Spectre-based speculative-execution attacks. Dubbed Retbleed by ETH Zurich researchers Johannes Wikner and Kaveh Razavi, the issues are tracked as CVE-2022-29900 (AMD) and CVE-2022-29901 (Intel), with the chipmakers releasing

Microsoft released its monthly round of Patch Tuesday updates to address 84 new security flaws spanning multiple product categories, counting a zero-day vulnerability that's under active attack in the wild. Of the 84 shortcomings, four are rated Critical, and 80 are rated Important in severity. Also separately resolved by the tech giant are two other bugs in the Chromium-based Edge browser, one

AMD microprocessor families 15h to 18h 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 certain microarchitecture-dependent conditions.

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 certain microarchitecture-dependent conditions.