Vulnerability Monitor

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CVE-2019-5611

In FreeBSD 12.0-STABLE before r350828, 12.0-RELEASE before 12.0-RELEASE-p10, 11.3-STABLE before r350829, 11.3-RELEASE before 11.3-RELEASE-p3, and 11.2-RELEASE before 11.2-RELEASE-p14, a missing check in the function to arrange data in a chain of mbufs could cause data returned not to be contiguous. Extra checks in the IPv6 stack could catch the error condition and trigger a kernel panic, leading to a remote denial of service.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 2 products from freebsd, from netapp organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-08-30T09:15:20.943

Last Modified

2024-11-21T04:45:14.047

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.3	Yes
Operating System	freebsd	freebsd	11.3	Yes
Operating System	freebsd	freebsd	11.3	Yes
Operating System	freebsd	freebsd	11.3	Yes
Operating System	freebsd	freebsd	11.3	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Application	netapp	clustered_data_ontap	-	Yes

References

http://packetstormsecurity.com/files/154170/FreeBSD-Security-Advisory-FreeBSD-SA-19-22.mbuf.html Exploit, Patch, Third Party Advisory, VDB Entry ([email protected])
https://seclists.org/bugtraq/2019/Aug/33 Exploit, Mailing List, Patch, Third Party Advisory ([email protected])
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asc Patch, Vendor Advisory ([email protected])
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asc Patch, Vendor Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20190910-0002/ Third Party Advisory ([email protected])
http://packetstormsecurity.com/files/154170/FreeBSD-Security-Advisory-FreeBSD-SA-19-22.mbuf.html Exploit, Patch, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/Aug/33 Exploit, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asc Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asc Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20190910-0002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For freebsd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.