What’s Vulnerable › Vulnerabilities

CVE-2017-5123

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-02 · updated 2026-06-17
• Weakness: CWE-20

Description

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.

Affected products

• Linux kernel: from 4.13 before 4.13.7 — fixed in 4.13.7
• NetApp Cloud Backup: all versions
• NetApp H300E Firmware: all versions
• NetApp H300S Firmware: all versions
• NetApp H410S Firmware: all versions
• NetApp H500E Firmware: all versions
• NetApp H500S Firmware: all versions
• NetApp H700E Firmware: all versions
• NetApp H700S Firmware: all versions

How to fix

Upgrade to a fixed version: Linux kernel 4.13.7. Check the vendor advisory for mitigations.

References

• https://crbug.com/772848
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96ca579a1ecc943b75beba58bebb0356f6cc4b51
• https://security.netapp.com/advisory/ntap-20211223-0003/
• https://crbug.com/772848
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96ca579a1ecc943b75beba58bebb0356f6cc4b51
• https://security.netapp.com/advisory/ntap-20211223-0003/

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