CVE-2018-18384 Memory corruption in n/a

Medium 5.5 Published 16 Oct 2018 Updated 5 Aug 2024

A buffer overflow in Info-ZIP UnZip allows attackers to execute arbitrary code or cause denial of service via a crafted ZIP archive.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2018-18384?

CVE-2018-18384 is a medium-severity memory corruption vulnerability in n/a, published on 16 Oct 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Info-ZIP UnZip 6.0 has a buffer overflow in list.c, when a ZIP archive has a crafted relationship between the compressed-size value and the uncompressed-size value, because a buffer size is 10 and is supposed to be 12.

Weakness: CWE-119

Which versions are affected by CVE-2018-18384?

It affects 1 product.

Linux distribution packages (17)

`unzip` Red Hat:enterprise_linux:7::client	All versions	`0:6.0-20.el7`
`unzip-debuginfo` Red Hat:enterprise_linux:7::client	All versions	`0:6.0-20.el7`
`unzip` Red Hat:enterprise_linux:7::computenode	All versions	`0:6.0-20.el7`
`unzip-debuginfo` Red Hat:enterprise_linux:7::computenode	All versions	`0:6.0-20.el7`
`unzip` Red Hat:enterprise_linux:7::server	All versions	`0:6.0-20.el7`
`unzip-debuginfo` Red Hat:enterprise_linux:7::server	All versions	`0:6.0-20.el7`
`unzip` Red Hat:enterprise_linux:7::workstation	All versions	`0:6.0-20.el7`
`unzip-debuginfo` Red Hat:enterprise_linux:7::workstation	All versions	`0:6.0-20.el7`
`unzip` SUSE:Linux Enterprise Module for Basesystem 15	All versions	`6.00-4.8.13`
`unzip` SUSE:Linux Enterprise Server 11 SP4	All versions	`6.00-11.18.8.1`
`unzip` SUSE:Linux Enterprise Server 12 SP4	All versions	`6.00-33.13.3`
`unzip` SUSE:Linux Enterprise Server 12 SP5	All versions	`6.00-33.13.3`
`unzip` SUSE:Linux Enterprise Server for SAP Applications 11 SP4	All versions	`6.00-11.18.8.1`
`unzip` SUSE:Linux Enterprise Server for SAP Applications 12 SP4	All versions	`6.00-33.13.3`
`unzip` SUSE:Linux Enterprise Server for SAP Applications 12 SP5	All versions	`6.00-33.13.3`
`unzip` openSUSE:Leap 15.0	All versions	`6.00-lp150.8.3`
`unzip-rcc` openSUSE:Leap 15.0	All versions	`6.00-lp150.8.3`

Products include Unzip Project Unzip.

How do I fix CVE-2018-18384?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-18384 being exploited?

There is no known exploitation of CVE-2018-18384 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2018-18384, AZL-35340, AZL-6942, DEBIAN-CVE-2018-18384, GHSA-jjvf-xm75-cph5, RHSA-2019:2159 and 5 more.