Vulnerability identifier: #VU13885

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-6553

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CUPS
Server applications / Other server solutions

Vendor: Apple Inc.

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to unspecified flaw. A remote attacker can invoke the dnssd backend using an alternate name that has been hard linked to dnssd and bypass the AppArmor cupsd sandbox

Mitigation
Update to version 2.2.1.

Vulnerable software versions

CUPS: 1.0.4 - 2.2.0

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External links
http://www.debian.org/security/2018/dsa-4243

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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.