Published: 14/01/2018 Updated: 05/02/2024

CVSS v2 Base Score: 9.3 | Impact Score: 10 | Exploitability Score: 8.6

CVSS v3 Base Score: 8.1 | Impact Score: 5.9 | Exploitability Score: 2.2

VMScore: 829

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

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel prior to 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().

Vulnerable Product	Search on Vulmon	Subscribe to Product
linux linux kernel

Synopsis Important: kernel-rt security, bug fix, and enhancement update Type/Severity Security Advisory: Important Topic An update for kernel-rt is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Sco ...

Synopsis Important: kernel security, bug fix, and enhancement update Type/Severity Security Advisory: Important Topic An update for kernel is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring S ...

A flaw was found in the Linux kernel's handling of fork failure when dealing with event messages in the userfaultfd code Failure to fork correctly can create a fork event that will be removed from an already freed list of events ...

CWE-119 https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6 https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252 https://bugzilla.redhat.com/show_bug.cgi?id=1523481 https://access.redhat.com/security/cve/CVE-2017-15126 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252 https://access.redhat.com/errata/RHSA-2018:1062 https://access.redhat.com/errata/RHSA-2018:0676 http://www.securityfocus.com/bid/102516 https://access.redhat.com/errata/RHSA-2018:0676 https://nvd.nist.gov https://access.redhat.com/security/cve/cve-2017-15126

CVE-2017-15126

Vulnerability Summary

Vendor Advisories

References

Vulmon Search

About

Products

Connect