CVE-2017-7374

HIGH

Linux kernel < 4.10.7 - Use After Free

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-7374. PoCs published by ww9210.

AI-analyzed exploit summary This PoC exploits CVE-2017-7374, a vulnerability in the Linux kernel's ext4 filesystem encryption implementation. It demonstrates how to trigger a race condition by manipulating encryption keys, potentially leading to a denial-of-service (DoS) or privilege escalation.

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.

Exploits (1)

nomisec WORKING POC 1 stars
by ww9210 · poc
https://github.com/ww9210/cve-2017-7374

This PoC exploits CVE-2017-7374, a vulnerability in the Linux kernel's ext4 filesystem encryption implementation. It demonstrates how to trigger a race condition by manipulating encryption keys, potentially leading to a denial-of-service (DoS) or privilege escalation.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Racy
Target: Linux kernel (ext4 filesystem with encryption)
Auth required
Prerequisites: ext4 filesystem with encryption support · ability to create encrypted directories · access to key management functions
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Third Party Advisory x_refsource_confirm
https://source.android.com/security/bulletin/2017-10-01
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97308
Release Notes, Vendor Advisory x_refsource_confirm
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.7

Scores

CVSS v3 7.8
EPSS 0.0080
EPSS Percentile 51.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416 CWE-476
Status published
Products (1)
linux/linux_kernel 4.2 - 4.4.59
Published Mar 31, 2017
Tracked Since Feb 18, 2026