Vulnerability identifier: #VU33149

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-7697

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
UnZip
Client/Desktop applications / Software for archiving

Vendor: Info-ZIP

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Info-ZIP UnZip 6.0 allows remote attackers to cause a denial of service (infinite loop) via empty bzip2 data in a ZIP archive.

Mitigation
Install update from vendor's website.

Vulnerable software versions

UnZip: 6.0

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External links
http://sourceforge.net/p/infozip/patches/23/
http://www.debian.org/security/2015/dsa-3386
http://www.openwall.com/lists/oss-security/2015/09/07/4
http://www.openwall.com/lists/oss-security/2015/09/15/6
http://www.openwall.com/lists/oss-security/2015/10/11/5
http://www.securityfocus.com/bid/76863
http://www.securitytracker.com/id/1034027
http://www.ubuntu.com/usn/USN-2788-1
http://www.ubuntu.com/usn/USN-2788-2

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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.