Vulnerability CVE-2022-20070 - CERT Civis.Net

Vulnerability Name:

CVE-2022-20070 (CCN-223972)

Assigned:

2021-10-12

Published:

2022-04-06

Updated:

2022-04-18

Summary:

In ssmr, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is no needed for exploitation. Patch ID: ALPS06362920; Issue ID: ALPS06362920.

CVSS v3 Severity:

6.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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): High Integrity (I): High Availibility (A): High

6.7 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

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

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

Vulnerability Type:

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2022-20070

Source: CCN
Type: MediaTek Web site
April 2022 Product Security Bulletin

Source: MISC
Type: Vendor Advisory
https://corp.mediatek.com/product-security-bulletin/April-2022

Source: XF
Type: UNKNOWN
mediatek-cve202220070-priv-esc(223972)

Vulnerable Configuration:

Configuration 1:

cpe:/o:google:android:11.0:*:*:*:*:*:*:*

OR cpe:/o:google:android:12.0:*:*:*:*:*:*:*

AND

cpe:/h:mediatek:mt6731:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6732:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6735:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6737:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6739:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6750:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6750s:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6752:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6753:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6755:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6755s:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6757:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6757c:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6757cd:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6757ch:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6758:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6761:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6762:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6763:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6765:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6768:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6769:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6771:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6779:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6781:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6785:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6789:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6795:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6797:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6799:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6833:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6853:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6853t:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6873:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6875:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6877:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6879:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6880:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6883:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6885:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6889:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6890:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6891:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6893:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6895:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6983:-:*:*:*:*:*:*:*

OR cpe:/h:mediatek:mt6985:-:*:*:*:*:*:*:*

Denotes that component is vulnerable