Vulnerability CVE-2022-30283

Vulnerability Name:

CVE-2022-30283 (CCN-244056)

Assigned:

2022-11-14

Published:

2022-11-14

Updated:

2022-11-23

Summary:

In UsbCoreDxe, tampering with the contents of the USB working buffer using DMA while certain USB transactions are in process leads to a TOCTOU problem that could be used by an attacker to cause SMRAM corruption and escalation of privileges The UsbCoreDxe module creates a working buffer for USB transactions outside of SMRAM. The code which uses can be inside of SMM, making the working buffer untrusted input. The buffer can be corrupted by DMA transfers. The SMM code code attempts to sanitize pointers to ensure all pointers refer to the working buffer, but when a pointer is not found in the list of pointers to sanitize, the current action is not aborted, leading to undefined behavior. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in: Kernel 5.0: Version 05.09. 21 Kernel 5.1: Version 05.17.21 Kernel 5.2: Version 05.27.21 Kernel 5.3: Version 05.36.21 Kernel 5.4: Version 05.44.21 Kernel 5.5: Version 05.52.21 https://www.insyde.com/security-pledge/SA-2022063

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): High Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): High Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

6.0 Medium (CCN CVSS v2 Vector: AV:L/AC:H/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): High Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-367

Vulnerability Consequences:

Gain Privilege

References:

Source: MITRE
Type: CNA
CVE-2022-30283

Source: XF
Type: UNKNOWN
insyde-cve202230283-priv-esc(244056)

Source: CCN
Type: INSYDE-SA-2022063
Insyde Security Advisory 2022063

Vulnerable Configuration:

Configuration CCN 1:

cpe:/a:insyde:insydeh2o:5.2:*:*:*:*:*:*:*

OR cpe:/a:insyde:insydeh2o:5.3:*:*:*:*:*:*:*

OR cpe:/a:insyde:insydeh2o:5.4:*:*:*:*:*:*:*

OR cpe:/a:insyde:insydeh2o:5.5:*:*:*:*:*:*:*

OR cpe:/a:insyde:insydeh2o:5.0:*:*:*:*:*:*:*

OR cpe:/a:insyde:insydeh2o:5.1:*:*:*:*:*:*:*

Denotes that component is vulnerable

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