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Vulnerability of Linux kernel: buffer overflow via f2fs_truncate_inline_inode

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via f2fs_truncate_inline_inode() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted products: Android OS, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 25/09/2020.
Références of this threat: CERTFR-2019-AVI-391, CERTFR-2019-AVI-419, CVE-2018-14615, USN-4094-1, USN-4118-1, VIGILANCE-VUL-33417.

Description of the vulnerability 

An attacker can trigger a buffer overflow via f2fs_truncate_inline_inode() of th...
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This security weakness impacts software or systems such as Android OS, Ubuntu.

Our Vigil@nce team determined that the severity of this threat bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this threat.

Solutions for this threat 

Solutions, fixes, patches and workarounds for this vulnerability are not yet public.
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