Information Exposure Affecting torvalds/linux package, versions [,4.15.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.68% (82nd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005926
  • published26 Jan 2022
  • disclosed21 Feb 2018
  • creditUnknown

Introduced: 21 Feb 2018

CVE-2018-7273  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.15.5 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.

References

CVSS Base Scores

version 3.1