Vulnerability CVE-2021-4204

Vulnerability Name:

CVE-2021-4204 (CCN-217028)

Assigned:

2022-01-11

Published:

2022-01-11

Updated:

2023-07-18

Summary:

CVSS v3 Severity:

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

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): High

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

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): High Availibility (A): High

CVSS v2 Severity:

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 Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2021-4204

Source: secalert@redhat.com
Type: Mitigation, Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Issue Tracking, Third Party Advisory
secalert@redhat.com

Source: XF
Type: UNKNOWN
linux-kernel-cve20214204-priv-esc(217028)

Source: CCN
Type: oss-sec Mailing List, Tue, 11 Jan 2022 20:00:08 +0800
CVE-2021-4204: Linux Kernel eBPF Improper Input Validation Vulnerability

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: CCN
Type: Linux Kernel Web site
The Linux Kernel Archives

Source: secalert@redhat.com
Type: Mailing List, Patch, Third Party Advisory
secalert@redhat.com

Vulnerable Configuration:

Configuration CCN 1:

cpe:/o:linux:linux_kernel:5.8:-:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.9:rc1:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.10:-:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.11:-:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.12:-:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.13:-:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.14:-:*:*:*:*:*:*

OR cpe:/a:linux:linux_kernel:5.15:-:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.16:-:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:8029	P	kernel-docs-5.14.21-150500.53.2 on GA media (Moderate)	2023-06-20
oval:org.opensuse.security:def:8090	P	reiserfs-kmp-default-5.14.21-150500.53.2 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:7539	P	kernel-64kb-5.14.21-150500.53.2 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:95383	P	Security update for the Linux Kernel (Important)	2022-08-01
oval:org.opensuse.security:def:627	P	Security update for the Linux Kernel (Important)	2022-08-01
oval:org.opensuse.security:def:3753	P	Security update for the Linux Kernel (Important)	2022-08-01
oval:org.opensuse.security:def:93477	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3720	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:589	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95273	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:94263	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3794	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:93630	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3726	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95335	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:94472	P	(Important)	2022-07-21
oval:org.opensuse.security:def:93159	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3643	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95416	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:93837	P	(Important)	2022-07-21
oval:org.opensuse.security:def:95350	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:93319	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3705	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95427	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:94051	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3783	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95356	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:3567	P	libXtst6-1.2.2-7.1 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:3398	P	wpa_supplicant-2.6-15.10.1 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:3448	P	busybox-1.21.1-3.3 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:3453	P	clamav-0.101.3-1.19 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:95028	P	kernel-docs-5.14.21-150400.22.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:2960	P	kernel-64kb-5.14.21-150400.22.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:95078	P	reiserfs-kmp-default-5.14.21-150400.22.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:95083	P	kernel-azure-5.14.21-150400.12.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94590	P	kernel-64kb-5.14.21-150400.22.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:95197	P	kernel-default-extra-5.14.21-150400.22.1 on GA media (Moderate)	2022-06-22

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