Newely discovered AMD CPU flaw highlights the risk of running multiple VMs


A newly discovered vulnerability in AMD chips allows malicious actors to perform remote code execution (RCE) and privilege escalation in virtual machines.

Cybersecurity researchers from the CISPA Helmholtz Center for Information Security in Germany detailed a vulnerability they named StackWarp, a hardware vulnerability in AMD CPUs that breaks the protections of confidential virtual machines, by manipulating how the processor tracks the stack, and letting a malicious insider or hypervisor change program flow or read sensitive data inside a protected VM.

Read more…
Source: Techradar News


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Google Chrome emergency update fixes new zero-day used in attacks

    September 2, 2022

    Google has released Chrome 105.0.5195.102 for Windows, Mac, and Linux users to address a single high-severity security flaw, the sixth Chrome zero-day exploited in attacks patched this year. “Google is aware of reports that an exploit for CVE-2022-3075 exists in the wild,” the company said in a security advisory published on Friday. This new version is rolling ...

  • Vulnerability in TikTok Android app could lead to one-click account hijacking

    August 31, 2022

    Microsoft discovered a high-severity vulnerability in the TikTok Android application, which could have allowed attackers to compromise users’ accounts with a single click. The vulnerability, which would have required several issues to be chained together to exploit, has been fixed and Microsoft did not locate any evidence of in-the-wild exploitation. Attackers could have leveraged the ...

  • Apple backports fix for actively exploited iOS zero-day to older iPhones

    August 31, 2022

    Apple has released new security updates to backport patches released earlier this month to older iPhones and iPads addressing a remotely exploitable WebKit zero-day that allows attackers to execute arbitrary code on unpatched devices. This zero-day vulnerability is the same one Apple patched for macOS Monterey and iPhone/iPad devices on August 17, and for Safari on ...

  • Critical hole in Atlassian Bitbucket allows any miscreant to hijack servers

    August 29, 2022

    A critical command-injection vulnerability in multiple API endpoints of Atlassian Bitbucket Server and Data Center could allow an unauthorized attacker to remotely execute malware, and view, change, and even delete data stored in repositories. Atlassian has fixed the security holes, which are present in versions 7.0.0 to 8.3.0 of the software, inclusive. Luckily there are no ...

  • Smartphone gyroscopes threaten air-gapped systems, researcher finds

    August 23, 2022

    An Israeli security researcher known for foiling air gap security measures has published a reminder of just how vulnerable the approaches are to both visual and ultrasonic threats. A pair of preprint papers from Mordechai Guri, head of R&D at Ben-Gurion University’s Cyber Security Research Labs, detail new methods for transmitting data ultrasonically to smartphone gyroscopes ...

  • CISA releases 7 Industrial Control Systems Advisories

    August 22, 2022

    CISA has released 7 Industrial Control Systems (ICS) advisories on August 23, 2022. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations: ICSA-22-235-01 ARC Informatique PcVue ICSA-22-235-02 Delta Industrial Automation DIALink ICSA-22-235-03 myScada Pro ICSA-22-235-05 Measuresoft ScadaPro Server ICSA-22-235-06 ...