libIEC61850 1.5.0 src/mms/iso_acse/acse.c AcseConnection_parseMessage null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.00

A vulnerability has been found in libIEC61850 1.5.0 and classified as problematic. This vulnerability affects the function AcseConnection_parseMessage of the file src/mms/iso_acse/acse.c. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-476. As an impact it is known to affect availability. CVE summarizes:

A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.

The weakness was disclosed 01/15/2022 as 368. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-45769 since 12/27/2021. Access to the local network is required for this attack. The requirement for exploitation is a single authentication. There are known technical details, but no exploit is available.

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

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VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2infoedit

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Denial of service
CWE: CWE-476
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

12/27/2021 CVE assigned
01/15/2022 +19 days Advisory disclosed
01/15/2022 +0 days VulDB entry created
01/19/2022 +4 days VulDB last update

Sourcesinfoedit

Advisory: 368
Status: Confirmed

CVE: CVE-2021-45769 (🔒)

Entryinfoedit

Created: 01/15/2022 08:03 AM
Updated: 01/19/2022 01:35 PM
Changes: (1) source_cve_nvd_summary
Complete: 🔍

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