CVE-2017-15127

medium

Description

A flaw was found in the hugetlb_mcopy_atomic_pte function in mm/hugetlb.c in the Linux kernel before 4.13. A superfluous implicit page unlock for VM_SHARED hugetlbfs mapping could trigger a local denial of service (BUG).

References

https://github.com/torvalds/linux/commit/5af10dfd0afc559bb4b0f7e3e8227a1578333995

https://bugzilla.redhat.com/show_bug.cgi?id=1525218

https://access.redhat.com/security/cve/CVE-2017-15127

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5af10dfd0afc559bb4b0f7e3e8227a1578333995

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

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

http://www.securityfocus.com/bid/102517

Details

Source: MITRE

Published: 2018-01-14

Updated: 2019-10-03

Type: NVD-CWE-noinfo

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM