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.
5.1	$0-$5k	0.00

A vulnerability classified as problematic was found in Wireshark up to 1.12.6 (Packet Analyzer Software). Affected by this vulnerability is the function wmem_block_split_free_chunk of the file epan/wmem/wmem_allocator_block.c. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

The wmem_block_split_free_chunk function in epan/wmem/wmem_allocator_block.c in the wmem block allocator in the memory manager in Wireshark 1.12.x before 1.12.7 does not properly consider a certain case of multiple realloc operations that restore a memory chunk to its original size, which allows remote attackers to cause a denial of service (incorrect free operation and application crash) via a crafted packet.

The weakness was shared 08/24/2015 (Website). It is possible to read the advisory at code.wireshark.org. This vulnerability is known as CVE-2015-6242 since 08/14/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 86156 (Debian DSA-3367-1 : wireshark - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124189 (Solaris 11.3 Support Repository Update (SRU) 1.5.0 Missing).

Upgrading to version 1.12.7 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (86156) and Vulnerability Center (SBV-52311†). The entries VDB-76766, VDB-76767, VDB-77418 and VDB-77420 are related to this item.

Productinfo

Type

• Packet Analyzer Software

Name

• Wireshark

Version

• 1.12.0
• 1.12.1
• 1.12.2
• 1.12.3
• 1.12.4
• 1.12.5
• 1.12.6

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

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: 86156
Nessus Name: Debian DSA-3367-1 : wireshark - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703367
OpenVAS Name: Debian Security Advisory DSA 3367-1 (wireshark - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Wireshark 1.12.7
Patch: eaf1aad31e7c0a4908c20a42ae118c4dc8d474b6

Timelineinfo

08/11/2015 🔍
08/14/2015 +3 days 🔍
08/24/2015 +10 days 🔍
08/24/2015 +0 days 🔍
08/25/2015 +1 days 🔍
08/26/2015 +1 days 🔍
06/13/2022 +2483 days 🔍

Sourcesinfo

Product: wireshark.org

Advisory: code.wireshark.org⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-6242 (🔍)
OVAL: 🔍

SecurityTracker: 1033272
Vulnerability Center: 52311 - Wireshark 1.12-1.12.6 Remote DoS in Memory Manager, Medium

See also: 🔍

Entryinfo

Created: 08/25/2015 10:05 AM
Updated: 06/13/2022 10:23 AM
Changes: 08/25/2015 10:05 AM (59), 11/05/2017 12:48 AM (9), 06/13/2022 10:17 AM (5), 06/13/2022 10:23 AM (1)
Complete: 🔍
Cache ID: 18:98F:40

Discussion

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