Vulnerability CVE-2021-39711

Vulnerability Name:

CVE-2021-39711 (CCN-222015)

Assigned:

2021-08-23

Published:

2022-03-07

Updated:

2022-03-23

Summary:

In bpf_prog_test_run_skb of test_run.c, there is a possible out of bounds read due to Incorrect Size Value. 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-154175781References: 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-2021-39711

Source: XF
Type: UNKNOWN
android-cve202139711-info-disc(222015)

Source: CCN
Type: Android Open Source Project
Pixel Update BulletinMarch 2022

Source: MISC
Type: Patch, Vendor Advisory
https://source.android.com/security/bulletin/pixel/2022-03-01

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:4737	P	Security update for the Linux Kernel (Important)	2022-08-02
oval:org.opensuse.security:def:4296	P	Security update for the Linux Kernel (Important)	2022-06-20
oval:org.opensuse.security:def:4628	P	Security update for the Linux Kernel (Important)	2022-06-20
oval:org.opensuse.security:def:6075	P	Security update for the Linux Kernel (Important)	2022-06-20
oval:org.opensuse.security:def:6339	P	Security update for the Linux Kernel (Important)	2022-06-20
oval:org.opensuse.security:def:5277	P	Security update for the Linux Kernel (Important)	2022-06-20
oval:org.opensuse.security:def:531	P	Security update for the Linux Kernel (Important)	2022-06-17
oval:org.opensuse.security:def:125112	P	Security update for the Linux Kernel (Important)	2022-06-14
oval:org.opensuse.security:def:127295	P	Security update for the Linux Kernel (Important)	2022-06-14
oval:org.opensuse.security:def:6070	P	Security update for the Linux Kernel (Important)	2022-06-14
oval:org.opensuse.security:def:125369	P	Security update for the Linux Kernel (Important)	2022-06-14
oval:org.opensuse.security:def:125732	P	Security update for the Linux Kernel (Important)	2022-06-14
oval:org.opensuse.security:def:126898	P	Security update for the Linux Kernel (Important)	2022-06-14

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