CVE-2019-19462 Null dereference in n/a

What is CVE-2019-19462?

CVE-2019-19462 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 30 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.

Weakness: CWE-476

Which versions are affected by CVE-2019-19462?

It affects 9 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Netapp Active Iq Unified Manager, Netapp Hci Compute Node, Netapp Hci Management Node and 3 more.

How do I fix CVE-2019-19462?

Apply the vendor's patch.

Is CVE-2019-19462 being exploited?

There is no known exploitation of CVE-2019-19462 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-2019-19462, GHSA-87g6-m6v4-rm4w, UBUNTU-CVE-2019-19462.