libIEC61850 1.3 mms/asn1/ber_encoder.c BerEncoder_encodeOctetString memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in libIEC61850 1.3 and classified as critical. This impacts the function BerEncoder_encodeOctetString of the file mms/asn1/ber_encoder.c. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2018-18834. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in libIEC61850 1.3 and classified as critical. Affected by this vulnerability is the function BerEncoder_encodeOctetString of the file mms/asn1/ber_encoder.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.

The bug was discovered 10/29/2018. The weakness was disclosed 10/29/2018 (Website). The advisory is shared at github.com. This vulnerability is known as CVE-2018-18834 since 10/28/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, 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.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/28/2018 🔍
10/29/2018 +0 days 🔍
10/29/2018 +0 days 🔍
10/30/2018 +0 days 🔍
10/31/2018 +1 days 🔍
06/03/2023 +1676 days 🔍

Sourcesinfo

Advisory: 81
Status: Not defined

CVE: CVE-2018-18834 (🔍)
GCVE (CVE): GCVE-0-2018-18834
GCVE (VulDB): GCVE-100-126157

Entryinfo

Created: 10/31/2018 06:22
Updated: 06/03/2023 14:44
Changes: 10/31/2018 06:22 (56), 04/07/2020 20:32 (1), 06/03/2023 14:44 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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