VDB-162826 · CVE-2020-27194 · GCVE-0-2020-27194

Linux Kernel up to 5.8.14 64-bit Value kernel/bpf/verifier.c scalar32_min_max_or memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.8.14. It has been declared as problematic. This issue affects the function scalar32_min_max_or of the file kernel/bpf/verifier.c of the component 64-bit Value Handler. Executing a manipulation can lead to an unknown weakness. This vulnerability is handled as CVE-2020-27194. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.8.14 (Operating System). It has been declared as problematic. This vulnerability affects the function scalar32_min_max_or of the file kernel/bpf/verifier.c of the component 64-bit Value Handler. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. The impact remains unknown.

The weakness was released 10/17/2020. The advisory is available at cdn.kernel.org. This vulnerability was named CVE-2020-27194. Technical details are known, but there is no available exploit.

Upgrading to version 5.8.15 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.8.15
Patch: github.com

Timelineinfo

10/16/2020 🔍
10/17/2020 +1 days 🔍
10/17/2020 +0 days 🔍
11/20/2020 +34 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: cdn.kernel.org
Status: Not defined

CVE: CVE-2020-27194 (🔍)
GCVE (CVE): GCVE-0-2020-27194
GCVE (VulDB): GCVE-100-162826

Entryinfo

Created: 10/17/2020 11:56
Updated: 11/20/2020 23:58
Changes: 10/17/2020 11:56 (41), 11/19/2020 08:09 (2), 11/20/2020 23:54 (2), 11/20/2020 23:58 (15)
Complete: 🔍
Cache ID: 216::103