Wireshark up to 2.6.1 BGP Protocol Dissector packet-bgp.c Packet input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Wireshark. It has been rated as problematic. Affected by this issue is some unknown functionality of the file epan/dissectors/packet-bgp.c of the component BGP Protocol Dissector. Performing a manipulation as part of Packet results in input validation. This vulnerability is reported as CVE-2018-14342. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Wireshark (Packet Analyzer Software). It has been classified as problematic. This affects an unknown function of the file epan/dissectors/packet-bgp.c of the component BGP Protocol Dissector. The manipulation as part of a Packet 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. The summary by CVE is:

In Wireshark 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15, the BGP protocol dissector could go into a large loop. This was addressed in epan/dissectors/packet-bgp.c by validating Path Attribute lengths.

The bug was discovered 07/18/2018. The weakness was disclosed 07/19/2018 as Bug 13741 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugs.wireshark.org. This vulnerability is uniquely identified as CVE-2018-14342 since 07/17/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 111392 (Debian DLA-1451-1 : wireshark security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277436 (Fedora Security Update for wireshark (FEDORA-2018-9ef52861b5)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111392) and SecurityFocus (BID 104847†). The entries VDB-121944, VDB-121945, VDB-121946 and VDB-121948 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: 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: 🔍

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Nessus ID: 111392
Nessus Name: Debian DLA-1451-1 : wireshark security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Patch: 36af43dbb7673495948cd65d0346e8b9812b941c

Timelineinfo

07/17/2018 🔍
07/18/2018 +0 days 🔍
07/18/2018 +0 days 🔍
07/18/2018 +0 days 🔍
07/19/2018 +1 days 🔍
07/19/2018 +0 days 🔍
07/29/2018 +10 days 🔍
07/30/2018 +1 days 🔍
04/18/2023 +1723 days 🔍

Sourcesinfo

Product: wireshark.org

Advisory: Bug 13741
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-14342 (🔍)
GCVE (CVE): GCVE-0-2018-14342
GCVE (VulDB): GCVE-100-121947
SecurityFocus: 104847 - Wireshark Multiple Denial of Service Vulnerabilities
SecurityTracker: 1041608

See also: 🔍

Entryinfo

Created: 07/19/2018 09:48
Updated: 04/18/2023 14:36
Changes: 07/19/2018 09:48 (77), 03/08/2020 15:30 (5), 04/18/2023 14:36 (6)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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