UBUNTU-CVE-2023-39946

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Source
https://ubuntu.com/security/CVE-2023-39946
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-39946.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2023-39946
Upstream
Downstream
Related
Published
2023-08-11T14:15:00Z
Modified
2025-10-24T05:02:14Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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 PIDPROPERTYLIST 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.

References

Affected packages

Ubuntu:Pro:22.04:LTS / fastdds

Package

Name
fastdds
Purl
pkg:deb/ubuntu/fastdds@2.5.0+ds-3ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.5.0+ds-3ubuntu0.1~esm1

Affected versions

2.*

2.1.0+ds-9
2.4.1+ds-1
2.5.0+ds-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "2.5.0+ds-3ubuntu0.1~esm1",
            "binary_name": "fastdds-tools"
        },
        {
            "binary_version": "2.5.0+ds-3ubuntu0.1~esm1",
            "binary_name": "libfastrtps-dev"
        },
        {
            "binary_version": "2.5.0+ds-3ubuntu0.1~esm1",
            "binary_name": "libfastrtps2.5"
        }
    ]
}