CVE-2017-10663

high

Description

The sanity_check_ckpt function in fs/f2fs/super.c in the Linux kernel before 4.12.4 does not validate the blkoff and segno arrays, which allows local users to gain privileges via unspecified vectors.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=15d3042a937c13f5d9244241c7a9c8416ff6e82a

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4

http://www.securityfocus.com/bid/100215

https://bugzilla.redhat.com/show_bug.cgi?id=1481149

https://github.com/torvalds/linux/commit/15d3042a937c13f5d9244241c7a9c8416ff6e82a

https://source.android.com/security/bulletin/2017-08-01

Details

Source: MITRE

Published: 2017-08-19

Updated: 2017-08-23

Type: CWE-129

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH