critical
9.8
CWE
416
Advisory Published
Updated

CVE-2023-21459: Use After Free

First published: Thu Mar 16 2023(Updated: )

Use after free vulnerability in decon driver prior to SMR Mar-2023 Release 1 allows attackers to cause memory access fault.

Credit: mobile.security@samsung.com

Affected SoftwareAffected VersionHow to fix
Samsung Android=11.0-smr-apr-2021-r1
Samsung Android=11.0-smr-apr-2022-r1
Samsung Android=11.0-smr-aug-2021-r1
Samsung Android=11.0-smr-aug-2022-r1
Samsung Android=11.0-smr-dec-2020-r1
Samsung Android=11.0-smr-dec-2021-r1
Samsung Android=11.0-smr-dec-2022-r1
Samsung Android=11.0-smr-feb-2021-r1
Samsung Android=11.0-smr-feb-2022-r1
Samsung Android=11.0-smr-feb-2023-r1
Samsung Android=11.0-smr-jan-2021-r1
Samsung Android=11.0-smr-jan-2022-r1
Samsung Android=11.0-smr-jan-2023-r1
Samsung Android=11.0-smr-jul-2021-r1
Samsung Android=11.0-smr-jul-2022-r1
Samsung Android=11.0-smr-jun-2021-r1
Samsung Android=11.0-smr-jun-2022-r1
Samsung Android=11.0-smr-mar-2021-r1
Samsung Android=11.0-smr-mar-2022-r1
Samsung Android=11.0-smr-may-2021-r1
Samsung Android=11.0-smr-may-2022-r1
Samsung Android=11.0-smr-nov-2021-r1
Samsung Android=11.0-smr-nov-2022-r1
Samsung Android=11.0-smr-oct-2021-r1
Samsung Android=11.0-smr-oct-2022-r1
Samsung Android=11.0-smr-sep-2021-r1
Samsung Android=11.0-smr-sep-2022-r1
Samsung Android=12.0-smr-apr-2022-r1
Samsung Android=12.0-smr-aug-2022-r1
Samsung Android=12.0-smr-dec-2021-r1
Samsung Android=12.0-smr-dec-2022-r1
Samsung Android=12.0-smr-feb-2022-r1
Samsung Android=12.0-smr-feb-2023-r1
Samsung Android=12.0-smr-jan-2022-r1
Samsung Android=12.0-smr-jan-2023-r1
Samsung Android=12.0-smr-jul-2022-r1
Samsung Android=12.0-smr-jun-2022-r1
Samsung Android=12.0-smr-mar-2022-r1
Samsung Android=12.0-smr-may-2022-r1
Samsung Android=12.0-smr-nov-2021-r1
Samsung Android=12.0-smr-nov-2022-r1
Samsung Android=12.0-smr-oct-2022-r1
Samsung Android=13.0-smr-dec-2022-r1
Samsung Android=13.0-smr-feb-2023-r1
Samsung Android=13.0-smr-jan-2023-r1
Samsung Android=13.0-smr-nov-2022-r1
Samsung Android=13.0-smr-nov-2023-r1
Samsung Android=13.0-smr-oct-2022-r1
Samsung Android=13.0-smr-oct-2023-r1
Samsung Exynos 2100

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Reference Links

Frequently Asked Questions

  • What is CVE-2023-21459?

    CVE-2023-21459 is a use after free vulnerability in the decon driver prior to SMR Mar-2023 Release 1.

  • What is the severity of CVE-2023-21459?

    The severity of CVE-2023-21459 is critical with a CVSS score of 9.8.

  • Which software versions are affected by CVE-2023-21459?

    The affected software versions include Samsung Android 11.0 SMR versions from Apr-2021 Release 1 to Feb-2023 Release 1.

  • How can attackers exploit CVE-2023-21459?

    Attackers can exploit CVE-2023-21459 by causing a memory access fault.

  • Is Samsung Exynos 2100 vulnerable to CVE-2023-21459?

    No, Samsung Exynos 2100 is not vulnerable to CVE-2023-21459.

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