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Status published
High
CVE-2017-15126
A use-after-free flaw was found in fs/userfaultfd.c in the Linux...
Vulnerability Description
A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.securityfocus.com/bid/102516
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252
- https://bugzilla.redhat.com/show_bug.cgi?id=1523481
- https://access.redhat.com/errata/RHSA-2018:1062
- https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252
- https://access.redhat.com/errata/RHSA-2018:0676
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6
- https://access.redhat.com/security/cve/CVE-2017-15126
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Affected Vendor
Affected Software
Linux Kernel before 4.13.6
Vulnerable Versions:
Linux Kernel before 4.13.6
Timeline
Official Publish:
January 14th, 2018
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H