CVE-2018-1130 Null dereference in kernel

What is CVE-2018-1130?

CVE-2018-1130 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 10 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Linux kernel before version 4.16-rc7 is vulnerable to a null pointer dereference in dccp_write_xmit() function in net/dccp/output.c in that allows a local user to cause a denial of service by a number of certain crafted system calls.

Weakness: CWE-476

Which versions are affected by CVE-2018-1130?

It affects 6 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2018-1130?

Apply the vendor's patch.

Is CVE-2018-1130 being exploited?

There is no known exploitation of CVE-2018-1130 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-2018-1130, GHSA-97cw-x85w-v9jc, UBUNTU-CVE-2018-1130.