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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 15.08% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- ntp/ntp · debian/debian linux · netapp/clustered data ontap · netapp/data ontap · netapp/oncommand balance · netapp/oncommand performance manager · netapp/oncommand unified manager for clustered data ontap · oracle/communications user data repository · oracle/linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · freebsd/freebsd · siemens/simatic net cp 443-1 opc ua firmware
- Source
- cve@mitre.org
EPSS 15.1% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
- http://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html
- http://rhn.redhat.com/errata/RHSA-2016-1552.htmlBroken Link
- http://support.ntp.org/bin/view/Main/NtpBug3009Vendor Advisory
- http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_ntp_4_2_8p7_SecurityVendor Advisory
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpd
- http://www.debian.org/security/2016/dsa-3629Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
- http://www.securityfocus.com/archive/1/538233/100/0/threaded
- http://www.securityfocus.com/archive/1/archive/1/538233/100/0/threaded
- http://www.securityfocus.com/bid/88226Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035705Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-3096-1
- https://access.redhat.com/errata/RHSA-2016:1141Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdfThird Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.ascThird Party Advisory
- https://security.gentoo.org/glsa/201607-15Third Party Advisory
- https://security.netapp.com/advisory/ntap-20171004-0002/Third Party Advisory
- https://support.f5.com/csp/article/K20804323
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.