CVE-2020-27194

CVSS V2 Low 2.1 CVSS V3 Medium 5.5

Description

An issue was discovered in the Linux kernel before 5.8.15. scalar32_min_max_or in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values, aka CID-5b9fbeb75b6a.

Overview

CVE ID
CVE-2020-27194

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2020-10-16T21:15:14

Last Modified Date
2022-06-28T14:11:45

Weakness Enumerations

CWE	URL
CWE-681	http://cwe.mitre.org/data/definitions/681.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:o:linux:linux_kernel::::::::	1	OR		5.8.15

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:N/I:N/A:P

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
2.1

Severity
LOW

Exploitability Score
3.9

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
5.5

Base Severity
MEDIUM

Exploitability Score
1.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://github.com/torvalds/linux/commit/5b9fbeb75b6a98955f628e205ac26689bcb1383e	Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.15	Release Notes Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-27194
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27194

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 16:21:27				Added to TrackCVE
2022-12-05 00:17:33	2020-10-16T21:15Z	2020-10-16T21:15:14	CVE Published Date	updated
2022-12-05 00:17:33		2022-06-28T14:11:45	CVE Modified Date	updated
2022-12-05 00:17:33		Analyzed	Vulnerability Status	updated