CVE-2016-9844

Ubuntu Security Notice USN-4672-1

Severity Score

4.0

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Buffer overflow in the zi_short function in zipinfo.c in Info-Zip UnZip 6.0 allows remote attackers to cause a denial of service (crash) via a large compression method value in the central directory file header.

Desbordamiento de búfer en la función zi_short en zipinfo.c en Info-Zip UnZip 6.0 permite a atacantes remotos provocar una denegación de servicio (caída) a través de un valor de método de compresión grande en el encabezado del archivo de directorio central.

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-12-05 CVE Reserved
2017-01-18 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (5)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/12/05/13	Mailing List
http://www.openwall.com/lists/oss-security/2016/12/05/19	Mailing List
http://www.openwall.com/lists/oss-security/2016/12/05/20	Mailing List
http://www.securityfocus.com/bid/94728	Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/1643750	Issue Tracking

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

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