Wireshark up to 3.0.0 Netscaler File Parser wiretap/netscaler.c input validation

Summaryinfo

A vulnerability was found in Wireshark and classified as problematic. Affected by this vulnerability is an unknown functionality of the file wiretap/netscaler.c of the component Netscaler File Parser. Executing a manipulation can lead to input validation. The identification of this vulnerability is CVE-2019-10895. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Wireshark (Packet Analyzer Software). It has been declared as problematic. This vulnerability affects an unknown code of the file wiretap/netscaler.c of the component Netscaler File Parser. 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. CVE summarizes:

In Wireshark 2.4.0 to 2.4.13, 2.6.0 to 2.6.7, and 3.0.0, the NetScaler file parser could crash. This was addressed in wiretap/netscaler.c by improving data validation.

The bug was discovered 04/08/2019. The weakness was shared 04/09/2019 by Mateusz Jurczyk (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2019-10895 since 04/05/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, 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 commercial vulnerability scanner Qualys is able to test this issue with plugin 371730 (Wireshark Multiple Security Vulnerabilities (wnpa-sec-2019-09 to wnpa-sec-2019-18)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 107834†). The entries VDB-133145, VDB-133143, VDB-133146 and VDB-133147 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Packet Analyzer Software

Name

• Wireshark

Version

• 2.4.0
• 2.4.1
• 2.4.2
• 2.4.3
• 2.4.4
• 2.4.5
• 2.4.6
• 2.4.7
• 2.4.8
• 2.4.9
• 2.4.10
• 2.4.11
• 2.4.12
• 2.4.13
• 2.6.0
• 2.6.1
• 2.6.2
• 2.6.3
• 2.6.4
• 2.6.5
• 2.6.6
• 2.6.7
• 3.0.0

License

• open-source

Website

• Product: https://www.wireshark.org/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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