Wireshark up to 1.12.8/2.0.0 BER Dissector packet-ber.c dissect_ber_GeneralizedTime 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.
5.4$0-$5k0.00

A vulnerability classified as problematic has been found in Wireshark up to 1.12.8/2.0.0 (Packet Analyzer Software). Affected is the function dissect_ber_GeneralizedTime of the file epan/dissectors/packet-ber.c of the component BER Dissector. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

The dissect_ber_GeneralizedTime function in epan/dissectors/packet-ber.c in the BER dissector in Wireshark 1.12.x before 1.12.9 and 2.0.x before 2.0.1 improperly checks an sscanf return value, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

The weakness was shared 01/04/2016 by Mateusz Jurczyk (Website). The advisory is shared for download at code.wireshark.org. This vulnerability is traded as CVE-2015-8720 since 01/03/2016. 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 87824 (Wireshark 1.12.x < 1.12.9 Multiple DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175659 (Debian Security Update for wireshark (DSA 3505-1)).

Upgrading to version 1.12.9 or 2.0.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (87824). The entries 78868, 80055, 80056 and 80057 are related to this item.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 87824
Nessus Name: Wireshark 1.12.x < 1.12.9 Multiple DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802978
OpenVAS Name: Wireshark Multiple Denial-of-Service Vulnerabilities-02 January16 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Wireshark 1.12.9/2.0.1
Patch: 921bb07115fbffc081ec56a5022b4a9d58db6d39

Timelineinfo

12/29/2015 🔍
12/29/2015 +0 days 🔍
12/29/2015 +0 days 🔍
01/03/2016 +5 days 🔍
01/04/2016 +1 days 🔍
01/04/2016 +0 days 🔍
01/05/2016 +1 days 🔍
01/08/2016 +3 days 🔍
01/25/2016 +17 days 🔍
07/02/2022 +2350 days 🔍

Sourcesinfo

Product: wireshark.org

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

CVE: CVE-2015-8720 (🔍)
OVAL: 🔍

SecurityTracker: 1034551
Vulnerability Center: 56138 - Wireshark 1.12.0-1.12.8, 2.0.0 Remote DoS in BER Dissector - CVE-2015-8720, Medium
SecurityFocus: 79814 - Wireshark Multiple Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 01/05/2016 08:27
Updated: 07/02/2022 09:29
Changes: 01/05/2016 08:27 (70), 07/05/2018 08:48 (17), 07/02/2022 09:26 (6), 07/02/2022 09:29 (1)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!