Vulnerability identifier: #VU13070

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-11506

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: No

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

Vendor: Linux Foundation

Description

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

The vulnerability exists in the sr_do_ioctl function, as defined in the drivers/scsi/sr_ioctl.c source code file due to differing buffer sizes in the CDROM layer and the SCSI layer. A local attacker can submit specially crafted input, trigger a stack-based overflow and cause the system to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.16.1 - 4.16.12

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External links
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f7068114d45ec55996b904...

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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.