#VU37551 Out-of-bounds read in UnZip - CVE-2018-1000033

Vulnerability identifier: #VU37551

Vulnerability risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-1000033

CWE-ID: CWE-125

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 #BASIC_IMPACT#.

An out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service and read sensitive memory.

Mitigation
Install update from vendor's website.

Vulnerable software versions

UnZip: 6.10c22

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External links
https://www.securityfocus.com/bid/103031
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-infozip-unzip/index.html

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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.