unzip 6.0 Stored memory corruption

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in unzip 6.0. It has been classified as problematic. Affected is an unknown function. This manipulation causes memory corruption (Stored). This vulnerability is tracked as CVE-2014-9636. No exploit exists.

Detailsinfo

A vulnerability was found in unzip 6.0. It has been declared as problematic. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a memory corruption vulnerability (Stored). The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. The summary by CVE is:

unzip 6.0 allows remote attackers to cause a denial of service (out-of-bounds read or write and crash) via an extra field with an uncompressed size smaller than the compressed field size in a zip archive that advertises STORED method compression.

The weakness was disclosed 02/06/2015 by mancha (Website). The advisory is shared at ubuntu.com. This vulnerability is known as CVE-2014-9636 since 01/22/2015. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 81162 (Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : unzip vulnerability (USN-2489-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171621 (SUSE Enterprise Linux Security Update for unzip (SUSE-SU-2018:2978-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 19781.

The vulnerability is also documented in the databases at X-Force (100264), Tenable (81162), SecurityFocus (BID 71825†), Secunia (SA62738†) and Vulnerability Center (SBV-48521†). The entries VDB-78975, VDB-78976, VDB-95463 and VDB-95531 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

unzip

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Stored
Class: Memory corruption / Stored
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 81162
Nessus Name: Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : unzip vulnerability (USN-2489-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2015-504
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

12/22/2014 🔍
12/22/2014 +0 days 🔍
01/22/2015 +31 days 🔍
02/04/2015 +13 days 🔍
02/05/2015 +1 days 🔍
02/06/2015 +1 days 🔍
02/06/2015 +0 days 🔍
02/08/2015 +2 days 🔍
03/27/2015 +47 days 🔍
04/12/2022 +2573 days 🔍

Sourcesinfo

Advisory: USN-2489-1
Researcher: mancha
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-9636 (🔍)
GCVE (CVE): GCVE-0-2014-9636
GCVE (VulDB): GCVE-100-73897

OVAL: 🔍

X-Force: 100264
SecurityFocus: 71825 - Info-ZIP UnZip Out of Bounds Denial of Service Vulnerability
Secunia: 62738 - Debian update for unzip, Moderately Critical
Vulnerability Center: 48521 - UnZip 6.0 Remote DoS via an Uncompressed Size, Medium

See also: 🔍

Entryinfo

Created: 03/27/2015 14:56
Updated: 04/12/2022 14:02
Changes: 03/27/2015 14:56 (65), 06/19/2017 08:40 (15), 04/12/2022 13:56 (3), 04/12/2022 14:02 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.