What’s Vulnerable › Vulnerabilities

CVE-2017-7533

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-08-05 · updated 2026-06-17
• Weakness: CWE-362

Description

Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages simultaneous execution of the inotify_handle_event and vfs_rename functions.

Affected products

• Linux kernel: from 3.14 before 3.16.47; from 3.17 before 3.18.64; from 3.19 before 4.4.80; from 4.5 before 4.9.41; from 4.10 before 4.12.5 — fixed in 3.16.47, 3.18.64, 4.12.5, 4.4.80, 4.9.41

How to fix

Upgrade to a fixed version: Linux kernel 3.16.47, 3.18.64, 4.12.5, 4.4.80. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=49d31c2f389acfe83417083e1208422b4091cd9e
• http://openwall.com/lists/oss-security/2017/08/03/2
• http://www.debian.org/security/2017/dsa-3927
• http://www.debian.org/security/2017/dsa-3945
• http://www.openwall.com/lists/oss-security/2019/06/27/7
• http://www.openwall.com/lists/oss-security/2019/06/28/1
• http://www.openwall.com/lists/oss-security/2019/06/28/2
• http://www.securityfocus.com/bid/100123
• http://www.securitytracker.com/id/1039075
• https://access.redhat.com/errata/RHSA-2017:2473
• https://access.redhat.com/errata/RHSA-2017:2585
• https://access.redhat.com/errata/RHSA-2017:2669

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