A vulnerability classified as critical was found in Linux Kernel 5.0.21 (Operating System). This vulnerability affects the function __remove_dirty_segment of the component f2fs Filesystem Image Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can cause __remove_dirty_segment slab-out-of-bounds write access because an array is bounded by the number of dirty types (8) but the array index can exceed this.

The weakness was disclosed 12/17/2019. This vulnerability was named CVE-2019-19814 since 12/16/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/12/2024).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries 147324, 147323 and 147321 are pretty similar.

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Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.0.21

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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