CVE-2019-5611
highpriority · track · 32EPSS 0.044 · 91 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (17)
External citations — patches, advisories, analysis.
- https://lists.freebsd.org/pipermail/freebsd-announce/2019-August/001908.htmlPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-5611cnnvd
- https://packetstormsecurity.com/files/154170/FreeBSD-Security-Advisory-FreeBSD-SA-19-22.mbuf.htmlcnnvd
- https://seclists.org/bugtraq/2019/Aug/33cnnvd
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asccnnvd
- https://security.netapp.com/advisory/ntap-20190910-0002/cnnvd
- https://vigilance.fr/vulnerability/FreeBSD-denial-of-service-via-IPv6-Fragmentation-m-pulldown-30095cnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.3955/cnnvd
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