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Abstract: On January 20, Beijing time, according to the technology website Ars Technica, there has been a privilege escalation flaw in tens of millions of devices running the Linux kernel over the past three years. Major Linux distributors are expected to fix the flaw this week, but with the difficulty of releasing updates for Android phones and embedded devices, many remain at risk for months and years to come.

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Beijing time on January 20 news, according to the technology website Ars Technica reported that in the past three years, tens of millions of devices running the Linux kernel have been suffering from a privilege escalation flaw. Major Linux distributors are expected to fix the flaw this week, but with the difficulty of releasing updates for Android phones and embedded devices, many remain at risk for months and years to come.

The flaw appeared in the Linux kernel version 3.8 released in early 2013. Researchers at security firm Perception Point discovered the flaw and reported it to the Linux kernel maintenance team.

On servers, a hacker with local access can exploit the flaw to gain the highest privileges; on smartphones running KitKat and later versions of Android, malicious apps can subvert normal security mechanisms and access underlying operating system functions; embedded Linux devices can also There are security risks.

Perception Point researchers said, "As of the date of disclosure, the flaw affects tens of millions of Linux PCs, servers, and 66% of Android devices (phones/tablets). Although we and the Linux kernel security team have not yet detected exploits for this flaw. We recommend that manufacturers release patches for insecure devices as soon as possible."

While hackers have been targeting Windows for years, they seem to be increasingly focusing on other operating systems as well.

This article is transferred from d1net (reproduced)

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