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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().
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CVE Modified by Red Hat, Inc.5/14/2024 12:23:50 AM
Action
Type
Old Value
New Value
Modified Analysis by NIST2/05/2024 2:52:32 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.11 up to (excluding) 4.13.6
*cpe:2.3:o:linux:linux_kernel:4.13.6:*:*:*:*:*:*:*
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.11 up to (excluding) 4.13.6
CVE Modified by Red Hat, Inc.2/12/2023 6:28:50 PM
Action
Type
Old Value
New Value
Removed
CVSS V3
Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CWE
Red Hat, Inc. CWE-119
Changed
Description
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.
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().
CVE Modified by Red Hat, Inc.2/02/2023 10:17:19 AM
Action
Type
Old Value
New Value
Added
CVSS V3
Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Removed
CWE
Red Hat, Inc. CWE-119
Removed
CWE Reason
CWE-119 / Assessment performed prior to CVMAP efforts
Changed
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().
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.
Modified Analysis by NIST1/19/2023 11:08:07 AM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:4.13.6:*:*:*:*:*:*:*
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.11 up to (excluding) 4.13.6
*cpe:2.3:o:linux:linux_kernel:4.13.6:*:*:*:*:*:*:*
Removed
CVSS V3
NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Added
CVSS V3.1
NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Changed
Reference Type
http://www.securityfocus.com/bid/102516 No Types Assigned
http://www.securityfocus.com/bid/102516 Third Party Advisory, VDB Entry
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2018:0676 No Types Assigned
https://access.redhat.com/errata/RHSA-2018:0676 Third Party Advisory
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2018:1062 No Types Assigned
https://access.redhat.com/errata/RHSA-2018:1062 Third Party Advisory
CVE Modified by Red Hat, Inc.10/09/2019 7:24:15 PM