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vulnerability

Oracle Linux: CVE-2021-39255: ELSA-2022-1759: virt:ol and virt-devel:ol security, bug fix, and enhancement update (MODERATE)

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Aug 30, 2021
Added
May 18, 2022
Modified
Dec 3, 2025

Description

A crafted NTFS image can trigger an out-of-bounds read, caused by an invalid attribute in ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22.
The ntfs3g package is susceptible to a heap overflow on crafted input. When processing an NTFS image, proper bounds checking was not enforced leading to this software flaw. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Solutions

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