CVE Vulnerability

CVE-2020-15158

In libIEC61850 before version 1.4.3, when a message with COTP message length field with value < 4 is received an integer underflow will happen leading to heap buffer overflow. This can cause an application crash or on some platforms even the execution of remote code. If your application is used in open networks or there are untrusted nodes in the network it is highly recommend to apply the patch. This was patched with commit 033ab5b. Users of version 1.4.x should upgrade to version 1.4.3 when available. As a workaround changes of commit 033ab5b can be applied to older versions.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/mz-automation/libiec61850/commit/033ab5b6488250c8c3b838f25a7cbc3e099230bb Patch Third Party Advisory
https://github.com/mz-automation/libiec61850/security/advisories/GHSA-pq77-fmf7-hjw8 Third Party Advisory
https://github.com/mz-automation/libiec61850/issues/250 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:mz-automation:libiec61850:*:*:*:*:*:*:*:*
Information

Published : 2020-08-26 06:15

Updated : 2021-11-18 06:35

NVD link : CVE-2020-15158

Mitre link : CVE-2020-15158

Products Affected
No products.
CWE
CWE-191

Integer Underflow (Wrap or Wraparound)