PT-2023-4899 · Eprosima+2 · Eprosima Fast Dds+2

Squizz617 · Published 2023-08-11 · Updated 2023-08-24 · CVE-2023-39945

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Name of the Vulnerable Software and Affected Versions eprosima Fast DDS versions prior to 2.11.0 eprosima Fast DDS versions prior to 2.10.2 eprosima Fast DDS versions prior to 2.9.2 eprosima Fast DDS versions prior to 2.6.5

Description The issue is related to an error in exception handling in the eprosima Fast DDS library, which is a C++ implementation of the Data Distribution Service standard of the Object Management Group. When a data submessage is sent to the PDP port, it raises an unhandled BadParamException in fastcdr, causing fastdds to crash. This could allow a remote attacker to cause a denial of service.

Recommendations For versions prior to 2.11.0, update to version 2.11.0 or later. For versions prior to 2.10.2, update to version 2.10.2 or later. For versions prior to 2.9.2, update to version 2.9.2 or later. For versions prior to 2.6.5, update to version 2.6.5 or later. As a temporary workaround, consider restricting access to the PDP port to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-248

Related Identifiers

BDU:2023-05392

CVE-2023-39945

DSA-5481-1

GHSA-2RQ6-8J7X-FRR9

USN-6306-1

Affected Products

Linuxmint

Ubuntu

Eprosima Fast Dds

References · 27

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39945.json · Exploit
• https://ubuntu.com/security/CVE-2023-39946 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-05392 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-39945 · Security Note
• https://osv.dev/vulnerability/CVE-2023-39945 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-39948 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6306-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-39949 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-39945 · Security Note
• https://ubuntu.com/security/CVE-2023-39947 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-39945 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6306-1 · Vendor Advisory
• https://debian.org/security/2023/dsa-5481 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-39945 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5481-1 · Vendor Advisory