CVE-2023-42459

moderate-risk
Published 2023-10-16

Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). In affected versions specific DATA submessages can be sent to a discovery locator which may trigger a free error. This can remotely crash any Fast-DDS process. The call to free() could potentially leave the pointer in the attackers control which could lead to a double free. This issue has been addressed in versions 2.12.0, 2.11.3, 2.10.3, and 2.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Do I need to act?

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0.22% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Eprosima

References (8)

Exploit https://github.com/eProsima/Fast-DDS/issues/3207
Patch https://github.com/eProsima/Fast-DDS/pull/3824
Vendor Advisory https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-gq8g-fj58-22gm
Mailing List https://www.debian.org/security/2023/dsa-5568
Exploit https://github.com/eProsima/Fast-DDS/issues/3207
Patch https://github.com/eProsima/Fast-DDS/pull/3824
Vendor Advisory https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-gq8g-fj58-22gm
Mailing List https://www.debian.org/security/2023/dsa-5568
35
/ 100
moderate-risk
Severity 29/34 · Critical
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal