Vulnerability · Published Aug 11, 2023 · Assigned by GitHub_M

CVE-2023-39949Improper validation of sequence numbers leading to remotely reachable assertion failure

High 7.5

In plain English

A high-severity security flaw in Fast-DDS from eProsima. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)1.0%top 35.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.9.1 and 2.6.5, improper validation of sequence numbers may lead to remotely reachable assertion failure. This can remotely crash any Fast-DDS process. Versions 2.9.1 and 2.6.5 contain a patch for this issue.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	fastdds	2.9.1+ds-1+deb12u1	DEBIAN-CVE-2023-39949
Debian:12	fastdds	2.9.1+ds-1+deb12u1	DSA-5481-1
Debian:13	fastdds	2.10.1+ds-2	DEBIAN-CVE-2023-39949

Affected products (as reported)

Vendor	Product	Versions
eProsima	Fast-DDS	>= 2.7.0, < 2.9.1< 2.6.5

Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-3jv9-j9x3-95cg x_refsource_CONFIRM
https://github.com/eProsima/Fast-DDS/issues/3236 x_refsource_MISC
https://github.com/eProsima/Fast-DDS/blob/v2.9.0/src/cpp/rtps/messages/MessageReceiver.cpp#L1059 x_refsource_MISC
https://www.debian.org/security/2023/dsa-5481