CVE-2016-2518 Memory corruption in n/a

What is CVE-2016-2518?

CVE-2016-2518 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 30 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-125

Which versions are affected by CVE-2016-2518?

It affects 17 products.

Products include Debian Debian Linux, Freebsd Freebsd, Netapp Clustered Data Ontap, Netapp Data Ontap, Netapp Oncommand Balance, Netapp Oncommand Performance Manager and 11 more.

How do I fix CVE-2016-2518?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2016-2518 being exploited?

There is no known exploitation of CVE-2016-2518 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-2518, GHSA-9cgg-qq3h-mgcv, UBUNTU-CVE-2016-2518.