PT-2017-4237 · Linux+3 · Linux Kernel+3

Published 2017-03-15 · Updated 2023-02-14 · CVE-2017-7374

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.10.7

Description The issue is related to a use-after-free vulnerability in the fs/crypto component of the Linux kernel, which can lead to a denial of service or possibly allow local users to gain privileges. This occurs when keyring keys used for ext4, f2fs, or ubifs encryption are revoked, causing cryptographic transform objects to be freed prematurely.

Recommendations For Linux kernel versions prior to 4.10.7, update to version 4.10.7 or later to resolve the issue.

Fix

DoS

NULL Pointer Dereference

Use After Free

Weakness Enumeration

CWE-476

CWE-416

Related Identifiers

ALT-PU-2017-1398

ALT-PU-2017-1399

BDU:2023-00940

CVE-2017-7374

OPENSUSE-SU-2017_1140-1

SUSE-SU-2017:1183-1

SUSE-SU-2017:1990-1

USN-3265-1

USN-3265-2

USN-3342-1

USN-3342-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 436

• https://github.com/torvalds/linux/commit/1b53cf9815bb4744958d41f3795d5d5a1d365e2d · Patch
• https://security-tracker.debian.org/tracker/CVE-2017-7374 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3265-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9075 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9077 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9076 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9242 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-7374 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-7374 · Vendor Advisory
• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.7 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-1000363 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-5986 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1b53cf9815bb4744958d41f3795d5d5a1d365e2d · Patch
• https://ubuntu.com/security/CVE-2017-9074 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-7374 · Security Note