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Review reviewHigh

CVE-2023-52491

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run In mtk_jpeg_probe, &jpeg->job_timeout_work is bound with mtk_jpeg_job_timeout_work. In mtk_jpeg_dec_device_run, if error happens in mtk_jpeg_set_dec_dst, it will finally start the worker while mark the job as finished by invoking v4l2_m2m_job_finish. There are two methods to trigger the bug. If we remove the module, it which will call mtk_jpeg_remove to make cleanup. The possible sequence is as follows, which will cause a use-after...

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2024.03.12
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run In mtk_jpeg_probe, &jpeg->job_timeout_work is bound with mtk_jpeg_job_timeout_work. In mtk_jpeg_dec_device_run, if error happens in mtk_jpeg_set_dec_dst, it will finally start the worker while mark the job as finished by invoking v4l2_m2m_job_finish. There are two methods to trigger the bug. If we remove the module, it which will call mtk_jpeg_remove to make cleanup. The possible sequence is as follows, which will cause a use-after...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 43872f44eee6c6781fea1348b38885d8e78face9, >= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 1b1036c60a37a30caf6759a90fe5ecd06ec35590, >= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 9fec4db7fff54d9b0306a332bab31eac47eeb5f6, >= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 8254d54d00eb6cdb8367399c7f912eb8d354ecd7, >= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 6e2f37022f0fc0893da4d85a0500c9d547fffd4c, >= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 206c857dd17d4d026de85866f1b5f0969f2a109e, >= 4.12, >= 4.12 < 5.10.210, >= 5.11 < 5.15.149, >= 5.16 < 6.1.76, >= 6.2 < 6.6.15, >= 6.7 < 6.7.3
Fixed versions
5.10.210, 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, 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