Wireshark up to 2.6.6 TCAP Dissector tcap.cnf null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Wireshark. It has been declared as problematic. Affected is an unknown function of the file epan/dissectors/asn1/tcap/tcap.cnf of the component TCAP Dissector. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2019-9208. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Wireshark (Packet Analyzer Software). This vulnerability affects some unknown processing of the file epan/dissectors/asn1/tcap/tcap.cnf of the component TCAP Dissector. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

In Wireshark 2.4.0 to 2.4.12 and 2.6.0 to 2.6.6, the TCAP dissector could crash. This was addressed in epan/dissectors/asn1/tcap/tcap.cnf by avoiding NULL pointer dereferences.

The bug was discovered 02/27/2019. The weakness was shared 02/28/2019 by Mateusz Jurczyk (OSS-Fuzz) (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2019-9208 since 02/26/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. 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 371670 (Wireshark Multiple Vulnerabilities (wnpa-sec-2019-06 to wnpa-sec-2019-08)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 107203†). The entries VDB-131285, VDB-131286 and VDB-133145 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

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: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: 3d1b8004ed3a07422ca5d4e4ee8097150b934fd2

Timelineinfo

02/26/2019 🔍
02/27/2019 +1 days 🔍
02/27/2019 +0 days 🔍
02/28/2019 +1 days 🔍
03/01/2019 +1 days 🔍
07/26/2023 +1608 days 🔍

Sourcesinfo

Product: wireshark.org

Advisory: USN-3986-1⛔
Researcher: Mateusz Jurczyk (OSS-Fuzz)
Status: Confirmed

CVE: CVE-2019-9208 (🔍)
GCVE (CVE): GCVE-0-2019-9208
GCVE (VulDB): GCVE-100-131284
SecurityFocus: 107203 - Wireshark Multiple Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 03/01/2019 08:37
Updated: 07/26/2023 09:38
Changes: 03/01/2019 08:37 (60), 05/13/2020 13:04 (7), 07/26/2023 09:38 (6)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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