CVE-2018-7995 Race condition in n/a

What is CVE-2018-7995?

CVE-2018-7995 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 9 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory. NOTE: a third party has indicated that this report is not security relevant

Weakness: CWE-362

Which versions are affected by CVE-2018-7995?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel.

How do I fix CVE-2018-7995?

Apply the vendor's patch.

Is CVE-2018-7995 being exploited?

There is no known exploitation of CVE-2018-7995 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-2018-7995, GHSA-84fm-f9m3-wc94, UBUNTU-CVE-2018-7995.