CVE-2017-14140

medium

Description

The move_pages system call in mm/migrate.c in the Linux kernel before 4.12.9 doesn't check the effective uid of the target process, enabling a local attacker to learn the memory layout of a setuid executable despite ASLR.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=197e7e521384a23b9e585178f3f11c9fa08274b9

http://www.debian.org/security/2017/dsa-3981

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.9

http://www.securityfocus.com/bid/100876

https://access.redhat.com/errata/RHSA-2018:0676

https://access.redhat.com/errata/RHSA-2018:1062

https://github.com/torvalds/linux/commit/197e7e521384a23b9e585178f3f11c9fa08274b9

https://source.android.com/security/bulletin/pixel/2018-01-01

https://usn.ubuntu.com/3583-1/

https://usn.ubuntu.com/3583-2/

Details

Source: MITRE

Published: 2017-09-05

Updated: 2018-04-12

Type: CWE-200

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM