CVE-2018-7182 Denial of service in n/a

What is CVE-2018-7182?

CVE-2018-7182 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 6 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The ctl_getitem method in ntpd in ntp-4.2.8p6 before 4.2.8p11 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted mode 6 packet with a ntpd instance from 4.2.8p6 through 4.2.8p10.

Weakness: CWE-125

Which versions are affected by CVE-2018-7182?

It affects 3 products.

Products include Canonical Ubuntu Linux, Netapp Element Software, Ntp Ntp.

How do I fix CVE-2018-7182?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-7182 being exploited?

There is no known exploitation of CVE-2018-7182 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2018-7182, GHSA-wjhm-mrg7-qc53, UBUNTU-CVE-2018-7182.