PT-2017-4149 · Linux+1 · Linux Kernel+1
Gregory Draperi
·
Published
2017-11-29
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Updated
2019-03-14
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CVE-2018-7273
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.15.4
Description
The issue is related to the floppy driver in the Linux kernel, specifically the
show floppy function in drivers/block/floppy.c. This function uses printk calls to reveal the addresses of kernel functions and global variables. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data, potentially bypassing kernel security protections. The exploitation of this issue may allow an attacker to bypass kernel security and gain unauthorized access to protected information.Recommendations
For Linux kernel versions prior to 4.15.4, update to a version that contains a fix for this issue to prevent potential exploitation.
Exploit
Fix
Information Disclosure
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Linux Kernel