Information disclosure in Linux Kernel

Published: 2018-08-17

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-5953 CVE-2018-5995
CWE-ID	CWE-200
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Linux kernel Operating systems & Components / Operating system
Vendor	Linux Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU14449

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-5953

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists in the swiotlb_print_info() function, as defined in the lib/swiotlb.c source code file due to the printk function prints kernel-object address information. A local attacker can access the system and use a software IO TLB call to read the kernel log.

Mitigation

Update to version 4.14.15.

Vulnerable software versions

Linux kernel: 4.10.0 - 4.14.14

CPE2.3

cpe:2.3:o:linux_foundation:linux_kernel:4.13:*:*:*:*:*:*:*

External links

http://github.com/johnsonwangqize/cve-linux/blob/master/%20CVE-2018-5953.md

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Information disclosure

EUVDB-ID: #VU14450