CVE-2017-18270 Privilege escalation in n/a

What is CVE-2017-18270?

CVE-2017-18270 is a high-severity vulnerability in Linux kernel, published on 18 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.

Which versions are affected by CVE-2017-18270?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-18270?

Apply the vendor's patch.

Is CVE-2017-18270 being exploited?

There is no known exploitation of CVE-2017-18270 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

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

Also known as CVE-2020-14353, DEBIAN-CVE-2017-18270, GHSA-r6j7-prqg-pp3v, UBUNTU-CVE-2017-18270.