4

Lenovo Patches UEFI Code Execution Vulnerability Affecting More Than 70 Laptop M...

 2 years ago
source link: https://it.slashdot.org/story/22/07/13/2224246/lenovo-patches-uefi-code-execution-vulnerability-affecting-more-than-70-laptop-models
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
neoserver,ios ssh client

Lenovo Patches UEFI Code Execution Vulnerability Affecting More Than 70 Laptop Models

Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

binspamdupenotthebestofftopicslownewsdaystalestupid freshfunnyinsightfulinterestingmaybe offtopicflamebaittrollredundantoverrated insightfulinterestinginformativefunnyunderrated descriptive typodupeerror

Do you develop on GitHub? You can keep using GitHub but automatically sync your GitHub releases to SourceForge quickly and easily with this tool so your projects have a backup location, and get your project in front of SourceForge's nearly 30 million monthly users. It takes less than a minute. Get new users downloading your project releases today!
×
Lenovo has released a security advisory to inform customers that more than 70 of its laptops are affected by a UEFI/BIOS vulnerability that can lead to arbitrary code execution. SecurityWeek reports: Researchers at cybersecurity firm ESET discovered a total of three buffer overflow vulnerabilities that can allow an attacker with local privileges to affected Lenovo devices to execute arbitrary code. However, Lenovo says only one of the vulnerabilities (CVE-2022-1892) impacts all devices, while the other two impact only a handful of laptops. "The vulnerabilities can be exploited to achieve arbitrary code execution in the early phases of the platform boot, possibly allowing the attackers to hijack the OS execution flow and disable some important security features," ESET explained. "These vulnerabilities were caused by insufficient validation of DataSize parameter passed to the UEFI Runtime Services function GetVariable. An attacker could create a specially crafted NVRAM variable, causing buffer overflow of the Data buffer in the second GetVariable call," it added.

Lenovo has also informed customers about Retbleed, a new speculative execution attack impacting devices with Intel and AMD processors. The company has also issued an advisory for a couple of vulnerabilities affecting many products that use the XClarity Controller server management engine. These flaws can allow authenticated users to cause a DoS condition or make unauthorized connections to internal services.

Do you have a GitHub project? Now you can sync your releases automatically with SourceForge and take advantage of both platforms.
Do you have a GitHub project? Now you can automatically sync your releases to SourceForge & take advantage of both platforms. The GitHub Import Tool allows you to quickly & easily import your GitHub project repos, releases, issues, & wiki to SourceForge with a few clicks. Then your future releases will be synced to SourceForge automatically. Your project will reach over 35 million more people per month and you’ll get detailed download statistics.
Sync Now


report

Recommend

About Joyk


Aggregate valuable and interesting links.
Joyk means Joy of geeK