Improper input validation in FreeBSD
CVE-2015-2923
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
Weakness classification (CWE)
References
- openwall.com/lists/oss-security/2015/04/04/2 (Mailing List, Third Party Advisory)
- lists.freebsd.org/pipermail/freebsd-net/2015-April/041934.html (Mailing List, Vendor Advisory)
- www.freebsd.org/security/advisories/FreeBSD-SA-15:09.ipv6.asc (Mitigation, Vendor Advisory)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-2923?
- CVE-2015-2923 is a medium-severity vulnerability in FreeBSD, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2020-02-20.
- How severe is CVE-2015-2923?
- Medium severity. CVSS v3 base score is 6.5 out of 10.