Improper input validation in FreeBSD
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.044 (91.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000
Affected products
- FreeBSD — versions 11.2, 11.3, 12.0
- NetApp Clustered Data Ontap
- FreeBSD — versions 12.0-RELEASE before 12.0-RELEASE-p10, 11.3-RELEASE before 11.3-RELEASE-p3, 11.2-RELEASE before 11.2-RELEASE-p14
Weakness classification (CWE)
References
- security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asc (vendor-advisory, Patch, Vendor Advisory)
- seclists.org/bugtraq/2019/Aug/33 (mailing-list, Exploit, Patch, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/154170/FreeBSD-Security-Advisory-FreeBSD-SA-19-22… (Exploit, Patch, VDB Entry, Third Party Advisory)
- security.netapp.com/advisory/ntap-20190910-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-5611?
- CVE-2019-5611 is a high-severity vulnerability in FreeBSD, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-08-30.
- How severe is CVE-2019-5611?
- High severity. CVSS v3 base score is 7.5 out of 10.