Vulnerability identifier: #VU11083

Vulnerability risk: Low

CVSSv3.1: 3.6 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-7727

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
ZZIPlib
Universal components / Libraries / Libraries used by multiple products

Vendor: zziplib.sourceforge.net

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

The weakness exists in the zzip_mem_disk_new function due to boundary error. A local attacker can send a specially crafted input, trigger memory leaks and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ZZIPlib: 0.13.68

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External links
http://github.com/gdraheim/zziplib/issues/40

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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. However, proof of concept for this vulnerability is available.