CVE-2017-7495

MEDIUM

Linux kernel <4.6.2 - Info Disclosure

Title source: llm

Description

fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.

References (7)

[Issue Tracking, Patch, Third Party Advisory] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824

[Release Notes, Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2017/05/15/2

[Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1450261

[Issue Tracking, Patch, Third Party Advisory] https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824

View Patch ZIP pw:eip

[Vendor Advisory] https://source.android.com/security/bulletin/2017-09-01

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/98491

Scores

CVSS v3 5.5

EPSS 0.0005

EPSS Percentile 15.9%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE

CWE-200

Status published

Products (2)

linux/linux_kernel < 4.6.1

n/a/Linux kernel before 4.6.2 < Linux kernel before 4.6.2

Published May 15, 2017

Tracked Since Feb 18, 2026