Smartphones like Samsung Galaxy S22 and Google Pixel 6A, and other devices operating of Android 12 are likely to affect by a highly severe Linux kernel bug – “Dirty Pipe.” Malicious software can use this flaw to get system-level access and rewrite data in read-only files on the system. The problem first came in the Linux kernel and was later replicated on Pixel 6 by a security researcher. Google is also aware of the roll of a patched system upgrade.
Security researcher Max Kellermann first sees the ‘Dirty Pipe’ vulnerability of the German Web development company CM4all. Other researchers were able to outline the effect of the security flaw, which is CVE-2022-0847, shortly after Kellermann officially exposed it this week.
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More Details about the ‘Dirty Pipe’ Bug
According to Kellermann, the problem is present in the Linux kernel from version 5.8. However, it was addressed in Linux 5.16.11, 5.15.25, and 5.10.102. It’s the same as the ‘Dirty COW’ issue, but the researcher claims it is easier to attack. The vulnerability known as ‘Dirty COW’ affected Linux kernel versions before 2018. It also affected Android users. However, Google addressed the problem in December 2016 with a security patch.
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An attacker who takes advantage of the ‘Dirty Pipe’ vulnerability on the Linux system can erase data in read-only files. Additionally, hackers may create unauthorized user accounts change scripts, and binaries by getting backdoor access. Because Android is based on the Linux kernel, the flaw can affect smartphone users as well. It is, however, currently restricted in scope because most Android releases do not use the Linux kernel versions impacted by the bug.
The researcher believes that even if the device is prone to getting the bug, it can gain full access to the root. This means that it can read even the encrypted text such as Whatsapp messages have control of the banking Apps.
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