Vulnerability Name:

CVE-2021-20268 (CCN-195799)

Assigned:2020-12-17
Published:2021-01-29
Updated:2023-06-30
Summary:
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (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: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): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/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): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
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 Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2021-20268

Source: CCN
Type: Red Hat Bugzilla - Bug 1923816
(CVE-2021-20268) - CVE-2021-20268 kernel: eBPF Improper Input Validation

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

Source: XF
Type: UNKNOWN
linux-kernel-ebpf-priv-esc(195799)

Source: secalert@redhat.com
Type: Patch, Vendor 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: CCN
Type: ZDI-21-101
Linux Kernel eBPF Improper Input Validation Privilege Escalation Vulnerability

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.10:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast 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:7581
    P
    		libcaca-devel-0.99.beta19.git20171003-150200.11.9.1 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:723
    P
    		Security update for postgresql14 (Important)
    2022-09-01
    oval:org.opensuse.security:def:3624
    P
    		Security update for curl (Important)
    2022-07-06
    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:3567
    P
    		libXtst6-1.2.2-7.1 on GA media (Moderate)
    2022-06-28
    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
    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:95078
    P
    		reiserfs-kmp-default-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:6060
    P
    		Security update for mailman (Important)
    2022-05-31
    oval:org.opensuse.security:def:6059
    P
    		Security update for ImageMagick (Important)
    2022-05-31
    oval:org.opensuse.security:def:111583
    P
    		Security update for the Linux Kernel (Important)
    2021-07-11
    oval:org.opensuse.security:def:111584
    P
    		Security update for the Linux Kernel (Important)
    2021-07-11
    oval:org.opensuse.security:def:67559
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:74710
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:97070
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:101899
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:99649
    P
    		 (Important)
    2021-06-15
    oval:org.opensuse.security:def:65642
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:8384
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:1543
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:101454
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:68337
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:76216
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:6470
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:97071
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:102286
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:99962
    P
    		 (Important)
    2021-06-15
    oval:org.opensuse.security:def:67148
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:10679
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:4553
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:1764
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:101780
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:68670
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:76217
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:7248
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:102316
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:100297
    P
    		 (Important)
    2021-06-15
    oval:org.opensuse.security:def:67149
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:73835
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:101868
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:70819
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:64713
    P
    		Security update for the Linux Kernel (Important)
    2021-06-15
    oval:org.opensuse.security:def:100626
    P
    		 (Important)
    2021-06-15
    BACK
    linux linux kernel 5.10 -