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Review reviewHigh

CVE-2023-52614

Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, linux kernel

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: Fix buffer overflow in trans_stat_show Fix buffer overflow in trans_stat_show(). Convert simple snprintf to the more secure scnprintf with size of PAGE_SIZE. Add condition checking if we are exceeding PAGE_SIZE and exit early from loop. Also add at the end a warning that we exceeded PAGE_SIZE and that stats is disabled. Return -EFBIG in the case where we don't have enough space to write the full transition table. Also document in the ABI that this function can return -EFBIG error.

CVSS
7.8
EPSS
0.26%
17.5% percentile
CISA KEV
Not listed
Published
2024.03.18
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.26%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: Fix buffer overflow in trans_stat_show Fix buffer overflow in trans_stat_show(). Convert simple snprintf to the more secure scnprintf with size of PAGE_SIZE. Add condition checking if we are exceeding PAGE_SIZE and exit early from loop. Also add at the end a warning that we exceeded PAGE_SIZE and that stats is disabled. Return -EFBIG in the case where we don't have enough space to write the full transition table. Also document in the ABI that this function can return -EFBIG error.

Affected product and versions

Product
Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, linux kernel
Affected versions
>= e552bbaf5b987f57c43e6981a452b8a3c700b1ae < 087de000e4f8c878c81d9dd3725f00a1d292980c, >= e552bbaf5b987f57c43e6981a452b8a3c700b1ae < 796d3fad8c35ee9df9027899fb90ceaeb41b958f, >= e552bbaf5b987f57c43e6981a452b8a3c700b1ae < 8a7729cda2dd276d7a3994638038fb89035b6f2c, >= e552bbaf5b987f57c43e6981a452b8a3c700b1ae < a979f56aa4b93579cf0e4265ae04d7e9300fd3e8, >= e552bbaf5b987f57c43e6981a452b8a3c700b1ae < eaef4650fa2050147ca25fd7ee43bc0082e03c87, >= e552bbaf5b987f57c43e6981a452b8a3c700b1ae < 08e23d05fa6dc4fc13da0ccf09defdd4bbc92ff4, >= 3.8, >= 3.8 < 5.10.216, >= 5.11 < 5.15.149, >= 5.16 < 6.1.76, >= 6.2 < 6.6.15, >= 6.7 < 6.7.3
Fixed versions
5.10.216, 5.15.149, 6.1.76, 6.6.15, 6.7.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, 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-120