CVE-2018-7273

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

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

http://www.securityfocus.com/bid/103088

https://lkml.org/lkml/2018/2/20/669

https://www.exploit-db.com/exploits/44325/

Details

Source: MITRE

Published: 2018-02-21

Updated: 2019-03-01

Type: CWE-200

Risk Information

CVSS v2

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.15.4 (inclusive)

Tenable Plugins

View all (2 total)

IDNameProductFamilySeverity
133913EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1112)NessusHuawei Local Security Checks
critical
124826EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1503)NessusHuawei Local Security Checks
critical