UnZip up to 6.0 CRC32 -t heap-based overflow

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

A vulnerability classified as critical has been found in UnZip up to 6.0. This affects an unknown function of the component CRC32 Handler. The manipulation of the argument -t as part of a ZIP Archive leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 12/22/2014 by Michele Spagnuolo with Google Security Team as #2014-011 as confirmed advisory (oCERT.org). The advisory is shared at ocert.org. This vulnerability is uniquely identified as CVE-2014-8139 since 10/10/2014. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

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 81543 (SuSE 11.3 Security Update : unzip (SAT Patch Number 10344)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195800 (Ubuntu Security Notification for Unzip Vulnerabilities (USN-2472-1)).

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 (99371) and Tenable (81543).

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81543
Nessus Name: SuSE 11.3 Security Update : unzip (SAT Patch Number 10344)
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: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍

Timelineinfo

10/10/2014 🔍
12/03/2014 +54 days 🔍
12/03/2014 +0 days 🔍
12/04/2014 +1 days 🔍
12/22/2014 +18 days 🔍
12/22/2014 +0 days 🔍
12/22/2014 +0 days 🔍
12/23/2014 +1 days 🔍
12/31/2014 +8 days 🔍
02/26/2015 +57 days 🔍
07/01/2015 +125 days 🔍
03/01/2022 +2435 days 🔍

Sourcesinfo

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

CVE: CVE-2014-8139 (🔍)
OVAL: 🔍

X-Force: 99371
SecurityTracker: 1031433 - UnZip Buffer Overflows in '-t' Command Line Option Let Remote Users Execute Arbitrary Code
Vulnerability Center: 50898 - Info-ZIP UnZip Local Code Execution due to Improper Bounds Check in the CRC32 Verification, Medium
SecurityFocus: 71790 - Info-ZIP UnZip CVE-2014-8139 Remote Heap Buffer Overflow Vulnerability

Entryinfo

Created: 12/31/2014 21:02
Updated: 03/01/2022 17:33
Changes: 12/31/2014 21:02 (70), 07/02/2017 20:47 (9), 03/01/2022 17:19 (2), 03/01/2022 17:27 (18), 03/01/2022 17:33 (1)
Complete: 🔍
Cache ID: 18:5B9:103

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