CVE-2018-18384

unzip: Buffer overflow in list.c resulting in a denial of service

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Info-ZIP UnZip 6.0 tiene un desbordamiento de búfer en list.c, cuando un archivo ZIP tiene una relación manipulada entre el valor de tamaño comprimido y el no comprimido. Esto se debe a que el tamaño de búfer es 10 y se supone que es 12.

Rene Freingruber discovered that unzip incorrectly handled certain specially crafted password protected ZIP archives. If a user or automated system using unzip were tricked into opening a specially crafted zip file, an attacker could exploit this to cause a crash, resulting in a denial of service. Antonio Carista discovered that unzip incorrectly handled certain specially crafted ZIP archives. If a user or automated system using unzip were tricked into opening a specially crafted zip file, an attacker could exploit this to cause a crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Various other issues were also addressed.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-10-16 CVE Reserved
2018-10-16 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2025-08-01 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC
https://bugzilla.suse.com/show_bug.cgi?id=1110194	2024-08-05

URL	Date	SRC
https://sourceforge.net/p/infozip/bugs/53	2019-12-16

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00009.html	2019-12-16
https://access.redhat.com/errata/RHSA-2019:2159	2019-12-16
https://access.redhat.com/security/cve/CVE-2018-18384	2019-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=1642931	2019-08-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Unzip Project Search vendor "Unzip Project"		Unzip Search vendor "Unzip Project" for product "Unzip"				6.0 Search vendor "Unzip Project" for product "Unzip" and version "6.0"		-		Affected