Vulnerability CVE-2021-39657

Vulnerability Name:

CVE-2021-39657 (CCN-215403)

Assigned:

2021-12-08

Published:

2021-12-08

Updated:

2021-12-20

Summary:

In ufshcd_eh_device_reset_handler of ufshcd.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-194696049References: Upstream kernel

CVSS v3 Severity:

4.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N)
3.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/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): None Availibility (A): None

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

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

CVSS v2 Severity:

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

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

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

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

Vulnerability Type:

CWE-125

Vulnerability Consequences:

Obtain Information

References:

Source: CCN
Type: Google Web site
Android

Source: MITRE
Type: CNA
CVE-2021-39657

Source: XF
Type: UNKNOWN
android-cve202139657-info-disc(215403)

Source: CCN
Type: Android Open Source Project
Pixel Update Bulletin - December 2021

Source: MISC
Type: Patch, Vendor Advisory
https://source.android.com/security/bulletin/pixel/2021-12-01

Vulnerable Configuration:

Configuration 1:

cpe:/o:google:android:-:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:google:android:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:101828	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:99193	P	(Important)	2022-03-30
oval:org.opensuse.security:def:102347	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:101951	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:99725	P	(Important)	2022-03-30
oval:org.opensuse.security:def:1150	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:100390	P	(Important)	2022-03-30
oval:org.opensuse.security:def:1795	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:1298	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:101574	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:42255	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:102304	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:101889	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:99463	P	(Important)	2022-03-30
oval:org.opensuse.security:def:843	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:102119	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:100056	P	(Important)	2022-03-30
oval:org.opensuse.security:def:1746	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:1229	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:100723	P	(Important)	2022-03-30
oval:org.opensuse.security:def:1555	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:42343	P	Security update for the Linux RT Kernel (Critical)	2022-02-21
oval:org.opensuse.security:def:42199	P	Security update for the Linux RT Kernel (Critical)	2022-02-21
oval:org.opensuse.security:def:102157	P	Security update for the Linux RT Kernel (Critical)	2022-02-21
oval:org.opensuse.security:def:1600	P	Security update for the Linux RT Kernel (Critical)	2022-02-21
oval:org.opensuse.security:def:100076	P	(Critical)	2022-02-11
oval:org.opensuse.security:def:1758	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:1241	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:100748	P	(Critical)	2022-02-11
oval:org.opensuse.security:def:101851	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:99210	P	(Critical)	2022-02-11
oval:org.opensuse.security:def:102356	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:101998	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:99746	P	(Critical)	2022-02-11
oval:org.opensuse.security:def:1189	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:100414	P	(Critical)	2022-02-11
oval:org.opensuse.security:def:1812	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:1418	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:101630	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:42337	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:102310	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:101894	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:99484	P	(Critical)	2022-02-11
oval:org.opensuse.security:def:938	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:102124	P	Security update for the Linux Kernel (Critical)	2022-02-10
oval:org.opensuse.security:def:1563	P	Security update for the Linux Kernel (Critical)	2022-02-10
oval:org.opensuse.security:def:42193	P	Security update for the Linux Kernel (Critical)	2022-02-10

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