Vulnerability identifier: #VU12179

Vulnerability risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1108

CWE-ID: CWE-665

Exploitation vector: Network

Exploit availability: No

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

Vendor: Linux Foundation

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the crng_ready() function due to improper initialization. A remote attacker can cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.8.0 - 4.8.17, 4.9 - 4.9.96, 4.10.0 - 4.10.17, 4.11 - 4.11.12, 4.12 - 4.12.14, 4.13 - 4.13.16, 4.14.0 - 4.14.36, 4.15.0 - 4.15.18, 4.16 - 4.16.4

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External links
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43838a23a05fbd13e47d750d3dfd77001536dd33

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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