VDB-99756 · CVE-2017-7746 · Bug 13576

Wireshark up to 2.0.11/2.2.5 SLSK Dissector packet-slsk.c resource management

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 declared as problematic. This affects an unknown function of the file epan/dissectors/packet-slsk.c of the component SLSK Dissector. The manipulation results in resource management. This vulnerability is identified as CVE-2017-7746. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Wireshark up to 2.0.11/2.2.5 (Packet Analyzer Software). Affected is some unknown processing of the file epan/dissectors/packet-slsk.c of the component SLSK Dissector. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the SLSK dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-slsk.c by adding checks for the remaining length.

The bug was discovered 04/12/2017. The weakness was released 04/12/2017 as Bug 13576 as confirmed bug report (Bugzilla). The advisory is shared for download at bugs.wireshark.org. This vulnerability is traded as CVE-2017-7746 since 04/12/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

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 97635†). Entries connected to this vulnerability are available at VDB-99746, VDB-99747, VDB-99748 and VDB-99749. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Packet Analyzer Software

Name

Wireshark

Version

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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
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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: 58e69cc769dea24b721abd8a29f9eedc11024b7e

Timelineinfo

04/12/2017 🔍
04/12/2017 +0 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 13576
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7746 (🔍)
GCVE (CVE): GCVE-0-2017-7746
GCVE (VulDB): GCVE-100-99756
SecurityFocus: 97635 - Wireshark SLSK Dissector 'dissectors/packet-slsk.c' Infinite Loop Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 04/13/2017 12:12
Updated: 11/29/2022 08:46
Changes: 04/13/2017 12:12 (75), 10/15/2019 09:49 (6), 11/29/2022 08:46 (5)
Complete: 🔍
Cache ID: 216:2CF:103