Vulnerability CVE-2022-0264

Vulnerability Name:

CVE-2022-0264 (CCN-219608)

Assigned:

2022-01-28

Published:

2022-01-28

Updated:

2022-11-16

Summary:

A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. This flaws affects kernel versions < v5.16-rc6

CVSS v3 Severity:

5.5 Medium (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 (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

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-755

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2022-0264

Source: CCN
Type: Red Hat Bugzilla Bug 2041547
(CVE-2022-0264) - CVE-2022-0264 kernel: address leakage in BPF atomic fetch

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2041547

Source: XF
Type: UNKNOWN
linux-kernel-cve20220264-info-disc(219608)

Source: CCN
Type: Linux Kernel GIT Repository
bpf: Fix kernel address leakage in atomic fetch

Vulnerable Configuration:

Configuration 1:

cpe:/o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*

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

OR cpe:/o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 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

BACK