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CVE-2021-38576

CVE-2021-38576

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A BIOS bug in firmware for a particular PC model leaves the Platform authorization value empty. This can be used to permanently brick the TPM in multiple ways, as well as to non-permanently DoS the system.

CVSS 7.5 · High · EPSS 1.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • edk ii

    Versions
    • edk2-stable202105, edk2-stable202102, edk2-stable202011, edk2-stable202008, edk2-stable202005, edk2-stable202002, edk2-stable201911, edk2-stable201908, edk2-stable201905, edk2-stable201903, edk2-stable201811, edk2-stable201808: Affected

    No fix published

  • edk2 Debian:12

    Affected ranges
    • ECOSYSTEM: < 2021.11-1

    Update to 2021.11-1

  • edk2 Debian:13

    Affected ranges
    • ECOSYSTEM: < 2021.11-1

    Update to 2021.11-1

  • edk2 Debian:14

    Affected ranges
    • ECOSYSTEM: < 2021.11-1

    Update to 2021.11-1

  • edk2 Ubuntu:Pro:16.04:LTS

    Versions
    • 0~20150106.5c2d456b-2
    • 0~20160104.c2a892d7-1
    • 0~20160408.ffea0a2c-2
    • 0~20160408.ffea0a2c-2ubuntu0.1
    • 0~20160408.ffea0a2c-2ubuntu0.2
    • 0~20160408.ffea0a2c-2ubuntu0.2+esm1
    • 0~20160408.ffea0a2c-2ubuntu0.2+esm3
    • 0~20160408.ffea0a2c-2ubuntu0.2+esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • edk2 Ubuntu:Pro:18.04:LTS

    Versions
    • 0~20170911.5dfba97c-1
    • 0~20171010.234dbcef-1
    • 0~20171027.76fd5a66-1
    • 0~20171205.a9212288-1
    • 0~20180105.0bc94c74-1
    • 0~20180205.c0d9813c-1
    • 0~20180205.c0d9813c-2
    • 0~20180205.c0d9813c-2ubuntu0.1
    • 0~20180205.c0d9813c-2ubuntu0.2
    • 0~20180205.c0d9813c-2ubuntu0.3
    • 0~20180205.c0d9813c-2ubuntu0.3+esm1
    • 0~20180205.c0d9813c-2ubuntu0.3+esm2
    • 0~20180205.c0d9813c-2ubuntu0.3+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • edk2 Ubuntu:Pro:20.04:LTS

    Versions
    • 0~20190606.20d2e5a1-2ubuntu1
    • 0~20190828.37eef910-3
    • 0~20190828.37eef910-4
    • 0~20191122.bd85bf54-1
    • 0~20191122.bd85bf54-1ubuntu1
    • 0~20191122.bd85bf54-2
    • 0~20191122.bd85bf54-2ubuntu1
    • 0~20191122.bd85bf54-2ubuntu2
    • 0~20191122.bd85bf54-2ubuntu3
    • 0~20191122.bd85bf54-2ubuntu3.1
    • 0~20191122.bd85bf54-2ubuntu3.2
    • 0~20191122.bd85bf54-2ubuntu3.3
    • 0~20191122.bd85bf54-2ubuntu3.4
    • 0~20191122.bd85bf54-2ubuntu3.5
    • 0~20191122.bd85bf54-2ubuntu3.6
    • 0~20191122.bd85bf54-2ubuntu3.6+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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