Vulnerability identifier: #VU28156

Vulnerability risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11494

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in "slc_bump" in "drivers/net/can/slcan.c" file. A local administrator can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.6 - 5.6.2

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External links
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html
http://github.com/torvalds/linux/commit/b9258a2cece4ec1f020715fe3554bc2e360f6264
http://security.netapp.com/advisory/ntap-20200430-0004/
http://usn.ubuntu.com/4364-1/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.