Buffer overflow in Info-ZIP UnZip

1) Buffer overflow

EUVDB-ID: #VU36542

Risk: Medium

CVSSv3.1: 5.1 [AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2018-18384

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary. A remote attacker can create a specially crafted file, trick the victim into opening it with the affected software, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

UnZip: 6.0

External links

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00009.html
http://access.redhat.com/errata/RHSA-2019:2159
http://bugzilla.suse.com/show_bug.cgi?id=1110194
http://sourceforge.net/p/infozip/bugs/53/

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.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted archive.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.