CVE-2017-7533

MEDIUM

Description

Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages simultaneous execution of the inotify_handle_event and vfs_rename functions.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=49d31c2f389acfe83417083e1208422b4091cd9e

http://openwall.com/lists/oss-security/2017/08/03/2

http://www.debian.org/security/2017/dsa-3927

http://www.debian.org/security/2017/dsa-3945

http://www.securityfocus.com/bid/100123

http://www.securitytracker.com/id/1039075

https://access.redhat.com/errata/RHSA-2017:2473

https://access.redhat.com/errata/RHSA-2017:2585

https://access.redhat.com/errata/RHSA-2017:2669

https://access.redhat.com/errata/RHSA-2017:2770

https://access.redhat.com/errata/RHSA-2017:2869

https://bugzilla.redhat.com/show_bug.cgi?id=1468283

https://github.com/torvalds/linux/commit/49d31c2f389acfe83417083e1208422b4091cd9e

https://patchwork.kernel.org/patch/9755753/

https://patchwork.kernel.org/patch/9755757/

https://source.android.com/security/bulletin/2017-12-01

https://www.mail-archive.com/[email protected]/msg1408967.html

Details

Source: MITRE

Published: 2017-08-05

Updated: 2018-01-05

Type: CWE-362

Risk Information

CVSS v2.0

Base Score: 6.9

Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C)

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3.0

Base Score: 7

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

Impact Score: 5.9

Exploitability Score: 1

Severity: HIGH