CVE-2017-18222

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-03-08 · updated 2026-06-17
Weakness: CWE-119

Description

In the Linux kernel before 4.12, Hisilicon Network Subsystem (HNS) does not consider the ETH_SS_PRIV_FLAGS case when retrieving sset_count data, which allows local users to cause a denial of service (buffer overflow and memory corruption) or possibly have unspecified other impact, as demonstrated by incompatibility between hns_get_sset_count and ethtool_get_strings.

Affected products

Linux kernel: before 4.12 — fixed in 4.12

How to fix

Upgrade to a fixed version: Linux kernel 4.12. Check the vendor advisory for mitigations.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=412b65d15a7f8a93794653968308fc100f2aa87c
http://www.securityfocus.com/bid/103349
https://github.com/torvalds/linux/commit/412b65d15a7f8a93794653968308fc100f2aa87c
https://usn.ubuntu.com/3654-1/
https://usn.ubuntu.com/3654-2/
https://usn.ubuntu.com/3656-1/
https://www.debian.org/security/2018/dsa-4188
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=412b65d15a7f8a93794653968308fc100f2aa87c
http://www.securityfocus.com/bid/103349
https://github.com/torvalds/linux/commit/412b65d15a7f8a93794653968308fc100f2aa87c
https://usn.ubuntu.com/3654-1/
https://usn.ubuntu.com/3654-2/

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