Out-of-bounds Read in FreeBSD
CVE-2016-2518
The MATCH_ASSOC function in NTP before version 4.2.8p9 and 4.3.x before 4.3.92 allows remote attackers to cause an out-of-bounds reference via an addpeer request with a large hmode value.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.151 (96.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.151 · newest: 0.151 · change: 0.000
Affected products
- FreeBSD — versions 9.3, 10.1, 10.2
- NetApp Clustered Data Ontap
- NetApp Data Ontap
- NetApp Oncommand Balance
- NetApp Oncommand Performance Manager
- NetApp Oncommand Unified Manager For Clustered Data Ontap
- NTP — versions 4.2.8
- Oracle Communications User Data Repository — versions 10.0.0, 10.0.1, 12.0.0
- Oracle Linux — versions 6, 7
- Siemens Simatic Net Cp 443-1 Opc Ua
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.ubuntu.com/usn/USN-3096-1 (vendor-advisory)
- www.debian.org/security/2016/dsa-3629 (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html (Patch, Third Party Advisory)
- support.ntp.org/bin/view/Main/NtpBug3009 (Vendor Advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html (Third Party Advisory)
- access.redhat.com/errata/RHSA-2016:1141 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html (vendor-advisory)
- www.kb.cert.org/vuls/id/718152 (US Government Resource, Third Party Advisory, third-party-advisory)
- rhn.redhat.com/errata/RHSA-2016-1552.html (vendor-advisory, Broken Link)
- www.securitytracker.com/id/1035705 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2016-2518?
- CVE-2016-2518 is a medium-severity vulnerability in FreeBSD, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2017-01-30.
- How severe is CVE-2016-2518?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2016-2518 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.