UnZip up to 6.0 test_compr_eb -t memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in UnZip up to 6.0. The impacted element is the function test_compr_eb. Executing a manipulation of the argument -t as part of ZIP Archive can lead to memory corruption. This vulnerability is tracked as CVE-2014-8140. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical was found in UnZip up to 6.0. This vulnerability affects the function test_compr_eb. The manipulation of the argument -t as part of a ZIP Archive leads to a memory corruption vulnerability. 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 confidentiality, integrity, and availability.

The weakness was disclosed 12/22/2014 by Michele Spagnuolo with Google Security Team as #2014-011 as confirmed advisory (oCERT.org). The advisory is available at ocert.org. This vulnerability was named CVE-2014-8140 since 10/10/2014. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 82832 (Amazon Linux AMI : unzip (ALAS-2015-504)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350198 (Amazon Linux Security Advisory for unzip: ALAS-2015-504).

Applying a patch is able to eliminate this problem. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (99372), Tenable (82832), SecurityTracker (ID 1031433†) and Vulnerability Center (SBV-50901†). The entries VDB-68481 and VDB-68483 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 82832
Nessus Name: Amazon Linux AMI : unzip (ALAS-2015-504)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

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: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍

Timelineinfo

01/01/2014 🔍
10/10/2014 +282 days 🔍
12/03/2014 +54 days 🔍
12/03/2014 +0 days 🔍
12/04/2014 +1 days 🔍
12/22/2014 +18 days 🔍
12/23/2014 +1 days 🔍
12/31/2014 +8 days 🔍
07/01/2015 +182 days 🔍
03/01/2022 +2435 days 🔍

Sourcesinfo

Advisory: #2014-011
Researcher: Michele Spagnuolo
Organization: Google Security Team
Status: Confirmed

CVE: CVE-2014-8140 (🔍)
GCVE (CVE): GCVE-0-2014-8140
GCVE (VulDB): GCVE-100-68482

OVAL: 🔍

X-Force: 99372
SecurityTracker: 1031433 - UnZip Buffer Overflows in '-t' Command Line Option Let Remote Users Execute Arbitrary Code
Vulnerability Center: 50901 - Info-ZIP UnZip Local Code Execution due to Improper Bounds Check by the \x27test_compr_eb\x27 Function, Medium

See also: 🔍

Entryinfo

Created: 12/31/2014 21:02
Updated: 03/01/2022 17:56
Changes: 12/31/2014 21:02 (63), 07/02/2017 20:47 (10), 03/01/2022 17:41 (2), 03/01/2022 17:48 (18), 03/01/2022 17:56 (1)
Complete: 🔍
Cache ID: 216:A74:103

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