CVE-2015-5194 Denial of service in n/a

What is CVE-2015-5194?

CVE-2015-5194 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 21 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The log_config_command function in ntp_parser.y in ntpd in NTP before 4.2.7p42 allows remote attackers to cause a denial of service (ntpd crash) via crafted logconfig commands.

Weakness: CWE-20

Which versions are affected by CVE-2015-5194?

It affects 13 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Ntp Ntp, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Hpc Node and 7 more.

How do I fix CVE-2015-5194?

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-2015-5194 being exploited?

There is no known exploitation of CVE-2015-5194 in the wild and no public exploit code.

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-2015-5194, GHSA-3263-mvg8-28x9, UBUNTU-CVE-2015-5194.