What is CVE-2023-52852?

CVE-2023-52852 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 5.13.19 onward and patched in 5.15.139, 6.1.63, 6.5.12 and others. CVE-2023-52852 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52852?

CVE-2023-52852 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-52852?

Yes, CVE-2023-52852 has been patched. Fixed versions include 5.15.139, 6.1.63, 6.5.12 and others. If you are running Linux kernel 5.13.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52852 actively exploited?

CVE-2023-52852 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2023-52852

High

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to avoid use-after-free on dic Call trace: __memcpy+0x128/0x250 f2fs_read_multi_pages+0x940/0xf7c f2fs_mpage_readpages+0x5a8/0x624 f2fs_readahead+0x5c/0x110 page_cache_ra_unbounded+0x1b8/0x590 do_sync_mmap_readahead+0x1dc/0x2e4 filemap_fault+0x254/0xa8c f2fs_filemap_fault+0x2c/0x104 __do_fault+0x7c/0x238 do_handle_mm_fault+0x11bc/0x2d14 do_mem_abort+0x3a8/0x1004 el0_da+0x3c/0xa0 el0t_64_sync_handler+0xc4/0xec el0t_64_sync+0x1b4/0x1b8 In f2fs_read_multi_pages(), once f2fs_decompress_cluster() was called if we hit cached page in compress_inode's cache, dic may be released, it needs break the loop rather than continuing it, in order to avoid accessing invalid dic pointer.

Package Linux Kernel

Published 2024-05-21

Last modified 2024-12-30

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2023-52852 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.13.19, 5.14 and later are affected. Fixed in 5.15.139, 6.1.63, 6.5.12, 6.6.2, 6.7 and their respective stable series.

Affected from

≥ 5.13.19 ≥ 5.14

Fixed in

✓ 5.15.139 5.15.x ✓ 6.1.63 6.1.x ✓ 6.5.12 6.5.x ✓ 6.6.2 6.6.x ✓ 6.7

References

5 total

Kernel Git
https://git.kernel.org/stable/c/8c4504cc0c64862740a6acb301e0cfa59580dbc5

Patch
Kernel Git
https://git.kernel.org/stable/c/932ddb5c29e884cc6fac20417ece72ba4a35c401

Patch
Kernel Git
https://git.kernel.org/stable/c/9375ea7f269093d7c884857ae1f47633a91f429c

Patch
Kernel Git
https://git.kernel.org/stable/c/9d065aa52b6ee1b06f9c4eca881c9b4425a12ba2

Patch
Kernel Git
https://git.kernel.org/stable/c/b0327c84e91a0f4f0abced8cb83ec86a7083f086

Patch

Details

CVE ID CVE-2023-52852

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2024-12-30

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52852?

CVE-2023-52852 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 5.13.19 onward and has been patched in 5.15.139, 6.1.63, 6.5.12 and others. CVE-2023-52852 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52852?

CVE-2023-52852 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-52852?

Yes. CVE-2023-52852 has been patched. Fixed versions include 5.15.139, 6.1.63, 6.5.12 and others. If you are running Linux kernel 5.13.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52852 actively exploited?

No. CVE-2023-52852 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.