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Review reviewHigh

CVE-2023-52852

Linux Linux, linux kernel

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 i...

CVSS
7.8
EPSS
0.24%
14.9% percentile
CISA KEV
Not listed
Published
2024.05.22
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.24%
Technical severityCVSS 7.8

Vulnerability overview

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 i...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < 8c4504cc0c64862740a6acb301e0cfa59580dbc5, >= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < 9375ea7f269093d7c884857ae1f47633a91f429c, >= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < 932ddb5c29e884cc6fac20417ece72ba4a35c401, >= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < 9d065aa52b6ee1b06f9c4eca881c9b4425a12ba2, >= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < b0327c84e91a0f4f0abced8cb83ec86a7083f086, >= a23706426da9b611be5beae0f3faa260fb453b4e, >= 5.13.19 < 5.14, >= 5.14, >= 5.13.19 < 5.15.139, >= 5.16 < 6.1.63, >= 6.2 < 6.5.12, >= 6.6 < 6.6.2
Fixed versions
5.15.139, 6.1.63, 6.5.12, 6.6.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416
CVE-2023-52852 — Linux Linux, linux kernel | SECUFOCUS NOW