Vulnerability Name:

CVE-2021-26382 (CCN-231345)

Assigned:2021-01-29
Published:2022-05-10
Updated:2022-07-29
Summary:An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (ACP,) irrespective of the respective signing key being declared as usable for authenticating an ACP firmware image, potentially resulting in a denial of service.
CVSS v3 Severity:4.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
3.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
2.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L)
2.0 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-26382

Source: XF
Type: UNKNOWN
amd-cve202126382-dos(231345)

Source: CCN
Type: AMD-SB-1027
AMD Client Vulnerabilities – May 2022

Source: MISC
Type: Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Vulnerable Configuration:Configuration 1:
  • cpe:/o:amd:ryzen_7_5700g_firmware:*:*:*:*:*:*:*:* (Version < comboam4_v2_pi_1.2.0.6c)
  • AND
  • cpe:/h:amd:ryzen_7_5700g:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:amd:ryzen_7_5700ge_firmware:*:*:*:*:*:*:*:* (Version < comboam4_v2_pi_1.2.0.6c)
  • AND
  • cpe:/h:amd:ryzen_7_5700ge:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:amd:ryzen_5_5600g_firmware:*:*:*:*:*:*:*:* (Version < comboam4_v2_pi_1.2.0.6c)
  • AND
  • cpe:/h:amd:ryzen_5_5600g:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:amd:ryzen_5_5600ge_firmware:*:*:*:*:*:*:*:* (Version < comboam4_v2_pi_1.2.0.6c)
  • AND
  • cpe:/h:amd:ryzen_5_5600ge:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:amd:ryzen_3_5300g_firmware:*:*:*:*:*:*:*:* (Version < comboam4_v2_pi_1.2.0.6c)
  • AND
  • cpe:/h:amd:ryzen_3_5300g:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:amd:ryzen_3_5300ge_firmware:*:*:*:*:*:*:*:* (Version < comboam4_v2_pi_1.2.0.6c)
  • AND
  • cpe:/h:amd:ryzen_3_5300ge:-:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:amd:ryzen_9_5980hx_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_9_5980hx:-:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:amd:ryzen_9_5980hs_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_9_5980hs:-:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:amd:ryzen_7_5825u_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_7_5825u:-:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/o:amd:ryzen_9_5900hx_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_9_5900hx:-:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/o:amd:ryzen_9_5900hs_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_9_5900hs:-:*:*:*:*:*:*:*

    • Configuration 12:
  • cpe:/o:amd:ryzen_7_5825c_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_7_5825c:-:*:*:*:*:*:*:*

    • Configuration 13:
  • cpe:/o:amd:ryzen_7_5800h_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_7_5800h:-:*:*:*:*:*:*:*

    • Configuration 14:
  • cpe:/o:amd:ryzen_5_5625u_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_5_5625u:-:*:*:*:*:*:*:*

    • Configuration 15:
  • cpe:/o:amd:ryzen_7_5800hs_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_7_5800hs:-:*:*:*:*:*:*:*

    • Configuration 16:
  • cpe:/o:amd:ryzen_5_5625c_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_5_5625c:-:*:*:*:*:*:*:*

    • Configuration 17:
  • cpe:/o:amd:ryzen_5_5600h_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_5_5600h:-:*:*:*:*:*:*:*

    • Configuration 18:
  • cpe:/o:amd:ryzen_5_5600hs_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_5_5600hs:-:*:*:*:*:*:*:*

    • Configuration 19:
  • cpe:/o:amd:ryzen_7_5800u_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_7_5800u:-:*:*:*:*:*:*:*

    • Configuration 20:
  • cpe:/o:amd:ryzen_5_5600u_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_5_5600u:-:*:*:*:*:*:*:*

    • Configuration 21:
  • cpe:/o:amd:ryzen_5_5560u_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_5_5560u:-:*:*:*:*:*:*:*

    • Configuration 22:
  • cpe:/o:amd:ryzen_3_5425u_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_3_5425u:-:*:*:*:*:*:*:*

    • Configuration 23:
  • cpe:/o:amd:ryzen_3_5425c_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_3_5425c:-:*:*:*:*:*:*:*

    • Configuration 24:
  • cpe:/o:amd:ryzen_3_5400u_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_3_5400u:-:*:*:*:*:*:*:*

    • Configuration 25:
  • cpe:/o:amd:ryzen_3_5125c_firmware:*:*:*:*:*:*:*:* (Version < cezannepi-fp6_1.0.0.9)
  • AND
  • cpe:/h:amd:ryzen_3_5125c:-:*:*:*:*:*:*:*

    • Configuration 26:
  • cpe:/o:amd:ryzen_3_3200u_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_3_3200u:-:*:*:*:*:*:*:*

    • Configuration 27:
  • cpe:/o:amd:ryzen_3_3250u_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_3_3250u:-:*:*:*:*:*:*:*

    • Configuration 28:
  • cpe:/o:amd:ryzen_3_3300u_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_3_3300u:-:*:*:*:*:*:*:*

    • Configuration 29:
  • cpe:/o:amd:ryzen_5_3500u_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_5_3500u:-:*:*:*:*:*:*:*

    • Configuration 30:
  • cpe:/o:amd:ryzen_5_3550h_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_5_3550h:-:*:*:*:*:*:*:*

    • Configuration 31:
  • cpe:/o:amd:ryzen_5_3580u_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_5_3580u:-:*:*:*:*:*:*:*

    • Configuration 32:
  • cpe:/o:amd:ryzen_7_3700u_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_7_3700u:-:*:*:*:*:*:*:*

    • Configuration 33:
  • cpe:/o:amd:ryzen_7_pro_3700u_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_7_pro_3700u:-:*:*:*:*:*:*:*

    • Configuration 34:
  • cpe:/o:amd:ryzen_7_3750h_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_7_3750h:-:*:*:*:*:*:*:*

    • Configuration 35:
  • cpe:/o:amd:ryzen_7_3780u_firmware:*:*:*:*:*:*:*:* (Version < renoirpi-fp6_1.0.0.7)
  • AND
  • cpe:/h:amd:ryzen_7_3780u:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:amd:ryzen:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    amd ryzen 7 5700g firmware *
    amd ryzen 7 5700g -
    amd ryzen 7 5700ge firmware *
    amd ryzen 7 5700ge -
    amd ryzen 5 5600g firmware *
    amd ryzen 5 5600g -
    amd ryzen 5 5600ge firmware *
    amd ryzen 5 5600ge -
    amd ryzen 3 5300g firmware *
    amd ryzen 3 5300g -
    amd ryzen 3 5300ge firmware *
    amd ryzen 3 5300ge -
    amd ryzen 9 5980hx firmware *
    amd ryzen 9 5980hx -
    amd ryzen 9 5980hs firmware *
    amd ryzen 9 5980hs -
    amd ryzen 7 5825u firmware *
    amd ryzen 7 5825u -
    amd ryzen 9 5900hx firmware *
    amd ryzen 9 5900hx -
    amd ryzen 9 5900hs firmware *
    amd ryzen 9 5900hs -
    amd ryzen 7 5825c firmware *
    amd ryzen 7 5825c -
    amd ryzen 7 5800h firmware *
    amd ryzen 7 5800h -
    amd ryzen 5 5625u firmware *
    amd ryzen 5 5625u -
    amd ryzen 7 5800hs firmware *
    amd ryzen 7 5800hs -
    amd ryzen 5 5625c firmware *
    amd ryzen 5 5625c -
    amd ryzen 5 5600h firmware *
    amd ryzen 5 5600h -
    amd ryzen 5 5600hs firmware *
    amd ryzen 5 5600hs -
    amd ryzen 7 5800u firmware *
    amd ryzen 7 5800u -
    amd ryzen 5 5600u firmware *
    amd ryzen 5 5600u -
    amd ryzen 5 5560u firmware *
    amd ryzen 5 5560u -
    amd ryzen 3 5425u firmware *
    amd ryzen 3 5425u -
    amd ryzen 3 5425c firmware *
    amd ryzen 3 5425c -
    amd ryzen 3 5400u firmware *
    amd ryzen 3 5400u -
    amd ryzen 3 5125c firmware *
    amd ryzen 3 5125c -
    amd ryzen 3 3200u firmware *
    amd ryzen 3 3200u -
    amd ryzen 3 3250u firmware *
    amd ryzen 3 3250u -
    amd ryzen 3 3300u firmware *
    amd ryzen 3 3300u -
    amd ryzen 5 3500u firmware *
    amd ryzen 5 3500u -
    amd ryzen 5 3550h firmware *
    amd ryzen 5 3550h -
    amd ryzen 5 3580u firmware *
    amd ryzen 5 3580u -
    amd ryzen 7 3700u firmware *
    amd ryzen 7 3700u -
    amd ryzen 7 pro 3700u firmware *
    amd ryzen 7 pro 3700u -
    amd ryzen 7 3750h firmware *
    amd ryzen 7 3750h -
    amd ryzen 7 3780u firmware *
    amd ryzen 7 3780u -
    amd ryzen *