CVE-2021-47087

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

04/03/2024

Last modified:

16/01/2025

Description

In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix incorrect page free bug Pointer to the allocated pages (struct page *page) has already progressed towards the end of allocation. It is incorrect to perform __free_pages(page, order) using this pointer as we would free any arbitrary pages. Fix this by stop modifying the page pointer.

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.4.140 (including)	5.4.169 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.10.58 (including)	5.10.89 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.14 (including)	5.15.12 (excluding)
cpe:2.3:o:linux:linux_kernel:5.16:rc1::::::
cpe:2.3:o:linux:linux_kernel:5.16:rc2::::::
cpe:2.3:o:linux:linux_kernel:5.16:rc3::::::
cpe:2.3:o:linux:linux_kernel:5.16:rc4::::::
cpe:2.3:o:linux:linux_kernel:5.16:rc5::::::
cpe:2.3:o:linux:linux_kernel:5.16:rc6::::::

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

CVE-2021-47087

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools