Strix
26.1K

CVE-2017-7374

HIGHCVSS 7.8/10EPSS 0.80%

Last modified

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

VendorProductVersions
LinuxLinux Kernel>= 4.2, < 4.4.59
LinuxLinux Kernel>= 4.5, < 4.9.20
LinuxLinux Kernel>= 4.10, < 4.10.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-7374?
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.
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.

How Strix Helps

Related CVEs from 2017

View all 2017CVEs →

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