CVE-2022-23222

kernel: local privileges escalation in kernel/bpf/verifier.c

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of the availability of pointer arithmetic via certain *_OR_NULL pointer types.

El archivo kernel/bpf/verifier.c en el kernel de Linux versiones hasta 5.15.14, permite a usuarios locales alcanzar privilegios debido a una disponibilidad de la aritmética de punteros por medio de determinados tipos de punteros *_OR_NULL

A flaw was found in the Linux kernel's adjust_ptr_min_max_vals in the kernel/bpf/verifier.c function. In this flaw, a missing sanity check for *_OR_NULL pointer types that perform pointer arithmetic may cause a kernel information leak issue.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-14 CVE Reserved
2022-01-14 CVE Published
2022-06-07 First Exploit
2023-03-08 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference
CWE-763: Release of Invalid Pointer or Reference

CAPEC

References (17)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2022/01/14/1	Mailing List
http://www.openwall.com/lists/oss-security/2022/06/04/3	Mailing List
http://www.openwall.com/lists/oss-security/2022/06/07/3	Mailing List
https://bugzilla.suse.com/show_bug.cgi?id=1194765
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=64620e0a1e712a778095bd35cbb277dc2259281f
https://security.netapp.com/advisory/ntap-20220217-0002	Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/01/13/1	Mailing List

URL	Date	SRC
https://github.com/tr3ee/CVE-2022-23222	2022-06-07
https://github.com/PenteraIO/CVE-2022-23222-POC	2022-06-23
https://github.com/FridayOrtiz/CVE-2022-23222	2022-08-30
http://www.openwall.com/lists/oss-security/2022/01/18/2	2024-08-03

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2022/06/01/1	2024-03-25

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCR3LIRUEXR7CA63W5M2HT3K63MZGKBR	2024-03-25
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z5VTIZZUPC73IEJNZX66BY2YCBRZAELB	2024-03-25
https://www.debian.org/security/2022/dsa-5050	2024-03-25
https://access.redhat.com/security/cve/CVE-2022-23222	2024-05-22
https://bugzilla.redhat.com/show_bug.cgi?id=2043520	2024-05-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Netapp Search vendor "Netapp"	H410c Firmware Search vendor "Netapp" for product "H410c Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H410c Search vendor "Netapp" for product "H410c"	-	-	Safe
Netapp Search vendor "Netapp"	H300s Firmware Search vendor "Netapp" for product "H300s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H300s Search vendor "Netapp" for product "H300s"	-	-	Safe
Netapp Search vendor "Netapp"	H500s Firmware Search vendor "Netapp" for product "H500s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H500s Search vendor "Netapp" for product "H500s"	-	-	Safe
Netapp Search vendor "Netapp"	H700s Firmware Search vendor "Netapp" for product "H700s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H700s Search vendor "Netapp" for product "H700s"	-	-	Safe
Netapp Search vendor "Netapp"	H300e Firmware Search vendor "Netapp" for product "H300e Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H300e Search vendor "Netapp" for product "H300e"	-	-	Safe
Netapp Search vendor "Netapp"	H500e Firmware Search vendor "Netapp" for product "H500e Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H500e Search vendor "Netapp" for product "H500e"	-	-	Safe
Netapp Search vendor "Netapp"	H700e Firmware Search vendor "Netapp" for product "H700e Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H700e Search vendor "Netapp" for product "H700e"	-	-	Safe
Netapp Search vendor "Netapp"	H410s Firmware Search vendor "Netapp" for product "H410s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H410s Search vendor "Netapp" for product "H410s"	-	-	Safe
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.8.0 < 5.15.37 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.8.0 < 5.15.37"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.16 < 5.16.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 5.16.11"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				35 Search vendor "Fedoraproject" for product "Fedora" and version "35"		-		Affected