CVE-2023-39946

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

11/08/2023

Last modified:

22/08/2023

Description

eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6, heap can be overflowed by providing a PID_PROPERTY_LIST parameter that contains a CDR string with length larger than the size of actual content. In `eprosima::fastdds::dds::ParameterPropertyList_t::push_back_helper`, `memcpy` is called to first copy the octet'ized length and then to copy the data into `properties_.data`. At the second memcpy, both `data` and `size` can be controlled by anyone that sends the CDR string to the discovery multicast port. This can remotely crash any Fast-DDS process. Versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6 contain a patch for this issue.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:eprosima:fast_dds::::::::	2.6.0 (including)	2.6.6 (excluding)
cpe:2.3:a:eprosima:fast_dds::::::::	2.9.0 (including)	2.9.2 (excluding)
cpe:2.3:a:eprosima:fast_dds::::::::	2.10.0 (including)	2.10.2 (excluding)
cpe:2.3:a:eprosima:fast_dds:2.11.0:::::::*
cpe:2.3:o:debian:debian_linux:11.0:::::::*
cpe:2.3:o:debian:debian_linux:12.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-39946

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools