Wireshark up to 2.0.11/2.2.5 PacketBB Dissector packet-packetbb.c input validation

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.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Wireshark up to 2.0.11/2.2.5. It has been rated as problematic. This impacts an unknown function of the file epan/dissectors/packet-packetbb.c of the component PacketBB Dissector. This manipulation causes input validation. This vulnerability is tracked as CVE-2017-7747. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in Wireshark up to 2.0.11/2.2.5 (Packet Analyzer Software). Affected by this vulnerability is an unknown function of the file epan/dissectors/packet-packetbb.c of the component PacketBB Dissector. 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:

In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the PacketBB dissector could crash, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-packetbb.c by restricting additions to the protocol tree.

The bug was discovered 03/03/2017. The weakness was disclosed 04/12/2017 as Bug 13559 as confirmed bug report (Bugzilla). The advisory is shared at bugs.wireshark.org. This vulnerability is known as CVE-2017-7747 since 04/12/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 40 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99436 (Wireshark 2.0.x < 2.0.12 / 2.2.x < 2.2.6 Multiple DoS (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176728 (Debian Security Update for wireshark (DLA 1634-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99436) and SecurityFocus (BID 97638†). The entries VDB-99746, VDB-99747, VDB-99748 and VDB-99749 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Packet Analyzer Software

Name

• Wireshark

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9
• 2.0.10
• 2.0.11
• 2.2.0
• 2.2.1
• 2.2.2
• 2.2.3
• 2.2.4
• 2.2.5

License

• open-source

Website

• Product: https://www.wireshark.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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: 🔍

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: 99436
Nessus Name: Wireshark 2.0.x < 2.0.12 / 2.2.x < 2.2.6 Multiple DoS (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802978
OpenVAS Name: Wireshark Multiple DoS Vulnerabilities-02 Apr17 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 5cfd52d6629cf8a7ab67c6bacd3431a964f43584

Timelineinfo

03/03/2017 🔍
04/12/2017 +40 days 🔍
04/12/2017 +0 days 🔍
04/12/2017 +0 days 🔍
04/12/2017 +0 days 🔍
04/12/2017 +0 days 🔍
04/13/2017 +1 days 🔍
04/18/2017 +5 days 🔍
11/29/2022 +2051 days 🔍

Sourcesinfo

Product: wireshark.org

Advisory: Bug 13559
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7747 (🔍)
GCVE (CVE): GCVE-0-2017-7747
GCVE (VulDB): GCVE-100-99757
SecurityFocus: 97638 - Wireshark 'dissectors/packet-packetbb.c' Denial of Service Vulnerability
OSVDB: - CVE-2017-7747 - Wireshark - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 04/13/2017 12:12
Updated: 11/29/2022 08:51
Changes: 04/13/2017 12:12 (69), 08/30/2020 08:14 (13), 11/29/2022 08:51 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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