CVE-2022-2905

CVSS V2 None CVSS V3 Medium 5.5

Description

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

Overview

CVE ID
CVE-2022-2905

Assigner
secalert@redhat.com

Vulnerability Status
Analyzed

Published Version
2022-09-09T15:15:10

Last Modified Date
2022-11-21T19:44:54

Weakness Enumerations

CWE	URL
CWE-125	http://cwe.mitre.org/data/definitions/125.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
cpe:2.3:o:linux:linux_kernel::::::::	1	OR	6.0
cpe:2.3:o:linux:linux_kernel:6.0:rc1::::::	1	OR
cpe:2.3:o:linux:linux_kernel:6.0:rc2::::::	1	OR
cpe:2.3:o:linux:linux_kernel:6.0:rc3::::::	1	OR
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*	1	OR
cpe:2.3:o:debian:debian_linux:10.0:::::::*	1	OR

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
NONE

Base Score
5.5

Base Severity
MEDIUM

Exploitability Score
1.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2121800	Exploit Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html	Mailing List Third Party Advisory
https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel@iogearbox.net/	Exploit Mailing List Patch Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-2905
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2905

History

Created	Old Value	New Value	Data Type	Notes
2022-09-09 16:00:13				Added to TrackCVE