Improper input validation in FreeBSD
CVE-2019-5598
In FreeBSD 11.3-PRERELEASE before r345378, 12.0-STABLE before r345377, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in pf does not check if the outer ICMP or ICMP6 packet has the same destination IP as the source IP of the inner protocol packet allowing a maliciously crafted ICMP/ICMP6 packet could bypass the packet filter rules and be passed to a host that would otherwise be unavailable.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.033 (88.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- FreeBSD — versions 11.2, 12.0
- FreeBSD — versions FreeBSD 11.2 before 11.2-RELEASE-p10 and 12.0 before 12.0-RELEASE-p4
Weakness classification (CWE)
References
- security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc (Patch, Vendor Advisory)
- www.synacktiv.com/posts/systems/icmp-reachable.html (Third Party Advisory)
- packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06… (VDB Entry, Third Party Advisory)
- www.securityfocus.com/bid/108395 (vdb-entry)
- security.netapp.com/advisory/ntap-20190611-0001/
- www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2019-5598?
- CVE-2019-5598 is a high-severity vulnerability in FreeBSD, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-05-15.
- How severe is CVE-2019-5598?
- High severity. CVSS v3 base score is 7.5 out of 10.