PT-2018-5774 · Linux+3 · Linux Kernel+3

Andrea Arcangeli · Published 2017-09-14 · Updated 2023-02-12 · CVE-2017-15127

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.13

Description: A flaw was found in the hugetlb mcopy atomic pte function in mm/hugetlb.c. This issue could trigger a local denial of service due to a superfluous implicit page unlock for VM SHARED hugetlbfs mapping.

Recommendations: For Linux kernel versions prior to 4.13, update to version 4.13 or later to resolve the issue. As a temporary workaround, consider restricting access to the hugetlb mcopy atomic pte function until a patch is available.

Fix

DoS

Weakness Enumeration

CWE-460

Related Identifiers

ALT-PU-2017-2206

ALT-PU-2018-1991

CESA-2018_1062

CVE-2017-15127

RHSA-2018:0676

RHSA-2018:1062

RHSA-2018_0676

RHSA-2018_1062

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

References · 15

• https://github.com/torvalds/linux/commit/5af10dfd0afc559bb4b0f7e3e8227a1578333995 · Patch
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5af10dfd0afc559bb4b0f7e3e8227a1578333995 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-15127 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-15127 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-15127 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:0676 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:1062 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-15127 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-15127 · Security Note
• https://cve.org/CVERecord?id=CVE-2017-15127 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-15127 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2018-1062.html · Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2017-15127 · Note
• http://securityfocus.com/bid/102517 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=1525218 · Note