CVE-2023-52646

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

26/04/2024

Last modified:

27/01/2025

Description

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced a null-deref if mremap is called on an old aio mapping after fork as mm->ioctx_table will be set to NULL. [jmoyer@redhat.com: fix 80 column issue]

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.19 (including)	4.14.306 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.273 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.232 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.169 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.95 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.13 (excluding)
cpe:2.3:o:linux:linux_kernel:6.2:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc4::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc5::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc6::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc7::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc8::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-52646

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools