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ubuntucveUbuntu.comUB:CVE-2023-4611
HistoryAug 29, 2023 - 12:00 a.m.

CVE-2023-4611

2023-08-2900:00:00
ubuntu.com
ubuntu.com
12
cve-2023-4611
race between mbind
vma-locked page fault
local attacker
kernel information leak
bugzilla redhat
bugzilla suse
launchpad priority reason

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

0.0004 Low

EPSS

Percentile

5.1%

A use-after-free flaw was found in mm/mempolicy.c in the memory management
subsystem in the Linux Kernel. This issue is caused by a race between
mbind() and VMA-locked page fault, and may allow a local attacker to crash
the system or lead to a kernel information leak.

Bugs

Notes

Author Note
Priority reason: A local attacker can cause a race condition leading to use after free, potentially causing a crash, data leak or privilege escalation.

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

0.0004 Low

EPSS

Percentile

5.1%