CVE-2017-14140

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-09-05 · updated 2026-06-17
Weakness: CWE-200

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.

Affected products

Linux kernel: through 4.12.8

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/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=197e7e521384a23b9e585178f3f11c9fa08274b9
http://www.debian.org/security/2017/dsa-3981

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