Vulnerability identifier: #VU27504

Vulnerability risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-17828

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

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

Vendor: zziplib.sourceforge.net

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in ZZIPlib within the unzzip_cat() function in the bins/unzzipcat-mem.c. A remote attacker can pass specially crafted archive to the application and overwrite arbitrary files on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ZZIPlib: 0.13.69

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External links
http://github.com/gdraheim/zziplib/issues/62

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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.