Buffer overflow in FreeBSD
CVE-2018-17156
In FreeBSD before 11.2-STABLE(r340268) and 11.2-RELEASE-p5, due to incorrectly accounting for padding on 64-bit platforms, a buffer underwrite could occur when constructing an ICMP reply packet when using a non-standard value for the net.inet.icmp.quotelen sysctl.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (75.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- FreeBSD — versions 11.2, FreeBSD 11.2 before 11.2-RELEASE-p5
Weakness classification (CWE)
References
- security.freebsd.org/advisories/FreeBSD-EN-18:13.icmp.asc (Exploit, Mitigation, Vendor Advisory)
- www.securityfocus.com/bid/106052 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-17156?
- CVE-2018-17156 is a medium-severity vulnerability in FreeBSD, classified under Out-of-bounds Write. CVSS score: 5.9/10. Published 2018-11-28.
- How severe is CVE-2018-17156?
- Medium severity. CVSS v3 base score is 5.9 out of 10.