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Debian: CVE-2018-12233: linux -- security update

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Debian: CVE-2018-12233: linux -- security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
06/12/2018
Created
03/19/2019
Added
02/19/2019
Modified
07/07/2020

Description

In the ea_get function in fs/jfs/xattr.c in the Linux kernel through 4.17.1, a memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to create files and execute programs. A kmalloc call is incorrect, leading to slab-out-of-bounds in jfs_xattr.

Solution(s)

  • debian-upgrade-linux

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