CVE-2017-18218 Use after free in n/a

What is CVE-2017-18218?

CVE-2017-18218 is a high-severity use after free vulnerability in Linux kernel, published on 5 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In drivers/net/ethernet/hisilicon/hns/hns_enet.c in the Linux kernel before 4.13, local users can cause a denial of service (use-after-free and BUG) or possibly have unspecified other impact by leveraging differences in skb handling between hns_nic_net_xmit_hw and hns_nic_net_xmit.

Weakness: CWE-416

Which versions are affected by CVE-2017-18218?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-18218?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2017-18218 being exploited?

There is no known exploitation of CVE-2017-18218 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 DEBIAN-CVE-2017-18218, GHSA-54jr-vfww-vxf7, UBUNTU-CVE-2017-18218.