vulnerability

Oracle Linux: CVE-2019-19770: ELSA-2020-4431: kernel security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:M/C:P/I:N/A:C)
Published
11/29/2019
Added
07/22/2024
Modified
11/29/2024

Description

In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace
A use-after-free flaw was found in the debugfs_remove function in the Linux kernel. The flaw could allow a local attacker with special user (or root) privilege to crash the system at the time of file or directory removal. This vulnerability can lead to a kernel information leak. The highest threat from this vulnerability is to system availability.

Solution

oracle-linux-upgrade-kernel
Title
NEW

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