Zeek Network Security Monitor up to 2.6.1 Kerberos Protocol Parser null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Zeek Network Security Monitor up to 2.6.1 and classified as problematic. Impacted is an unknown function of the component Kerberos Protocol Parser. The manipulation results in null pointer dereference. This vulnerability was named CVE-2019-12175. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Zeek Network Security Monitor up to 2.6.1. Affected is an unknown code of the component Kerberos Protocol Parser. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.

The weakness was presented 07/17/2019 (GitHub Repository). The advisory is available at github.com. This vulnerability is traded as CVE-2019-12175 since 05/18/2019. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 2.6.2 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Network Security Monitor 2.6.2

Timelineinfo

05/18/2019 🔍
07/17/2019 +60 days 🔍
07/17/2019 +0 days 🔍
11/01/2023 +1568 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-12175 (🔍)
GCVE (CVE): GCVE-0-2019-12175
GCVE (VulDB): GCVE-100-138198

Entryinfo

Created: 07/17/2019 22:31
Updated: 11/01/2023 07:41
Changes: 07/17/2019 22:31 (56), 07/07/2020 16:31 (1), 11/01/2023 07:41 (4)
Complete: 🔍
Cache ID: 216::103

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