CVE-2017-7374

Name: CVE-2017-7374
Creator: NVD / NIST
Published: 2017-03-31T20:59:00.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2017-7374 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Use-after-free vulnerability in fs/crypto/ in the Linux kernel before 4.10.7 allows local users to cause a denial of service (NULL pointer dereference) or possibly gain privileges by revoking keyring keys being used for ext4, f2fs, or ubifs encryption, causing cryptographic transform objects to be freed prematurely.. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in fs/crypto/ in the Linux kernel before 4.10.7 allows local users to cause a denial of service (NULL pointer dereference) or possibly gain privileges by revoking keyring keys being used for ext4, f2fs, or ubifs encryption, causing cryptographic transform objects to be freed prematurely.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.80%

51.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 4.2, < 4.4.59
Linux	Linux Kernel	>= 4.5, < 4.9.20
Linux	Linux Kernel	>= 4.10, < 4.10.7

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1b53cf9815bb4744958d41f3795d5d5a1d365e2dPatch, Third Party Advisory
http://www.securityfocus.com/bid/97308Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/1b53cf9815bb4744958d41f3795d5d5a1d365e2dPatch, Third Party Advisory
https://source.android.com/security/bulletin/2017-10-01Third Party Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.7Release Notes, Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1b53cf9815bb4744958d41f3795d5d5a1d365e2dPatch, Third Party Advisory
http://www.securityfocus.com/bid/97308Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/1b53cf9815bb4744958d41f3795d5d5a1d365e2dPatch, Third Party Advisory
https://source.android.com/security/bulletin/2017-10-01Third Party Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.7Release Notes, Vendor Advisory

Timeline

Published: Mar 31, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7374?

How severe is CVE-2017-7374?

CVE-2017-7374 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7374?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-7374?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST