CVE-2023-50716: fast dds Use-After-Free — Fix

Description

eProsima Fast DDS (formerly Fast RTPS) is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.13.0, 2.12.2, 2.11.3, 2.10.3, and 2.6.7, an invalid DATA_FRAG Submessage causes a bad-free error, and the Fast-DDS process can be remotely terminated. If an invalid Data_Frag packet is sent, the `Inline_qos, SerializedPayload` member of object `ch` will attempt to release memory without initialization, resulting in a 'bad-free' error. Versions 2.13.0, 2.12.2, 2.11.3, 2.10.2, and 2.6.7 fix this issue.

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CVSS v3.1 Score

9.6

CRITICAL

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
eprosima	fast_dds	< 2.6.7
eprosima	fast_dds	2.10.0 — 2.10.3
eprosima	fast_dds	2.11.0 — 2.11.3
eprosima	fast_dds	2.12.0 — 2.12.2

References

Advisories & Patches

https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-5m2f-hvj2-cx2h https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-5m2f-hvj2-cx2h

Frequently Asked Questions

What is CVE-2023-50716? +

eProsima Fast DDS (formerly Fast RTPS) is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.13.0, 2.12.2, 2.11.3, 2.10.3, and 2.6.7, an invalid DATA_FRAG Submessage causes a bad-free error, and the Fast-DDS process can be remotely terminated. If an invalid Data_Frag packet is sent, the `Inline_qos, SerializedPayload` member of object `ch` will attempt to release memory without initialization, resulting in a 'bad-free' error. Versions 2.13.0, 2.12.2, 2.11.3, 2.10.2, and 2.6.7 fix this issue. It has a CVSS v3.1 base score of 9.6 (CRITICAL).

How severe is CVE-2023-50716? +

CVE-2023-50716 has a CVSS v3.1 score of 9.6 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2023-50716? +

CVE-2023-50716 affects products from eprosima, specifically: fast_dds. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-50716? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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