CVE-2020-15158CWE-119CWE-122

Heap buffer overflow in libIEC61850

High · published August 26, 2020

CVSS v3.1
7.7
EPSS
2%
Percentile
81.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.02036 · 81.0th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-122 · Heap-based Buffer Overflow
Published
2020-08-26T18:00Z
EPSS history
Timeline
  • 26 AUG 18:00Z
    Heap buffer overflow in libIEC61850
    cvelistv5