Linux Kernel up to 5.4 Packet out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel up to 5.4. Affected by this issue is some unknown functionality of the component Packet Handler. Such manipulation leads to out-of-bounds. This vulnerability is referenced as CVE-2021-20177. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.4 (Operating System). Affected by this issue is an unknown code block of the component Packet Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability.

The weakness was published 05/27/2021. The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2021-20177. There are neither technical details nor an exploit publicly available.

Upgrading to version 5.5-rc1 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.5-rc1

Timelineinfo

12/17/2020 🔍
05/27/2021 +160 days 🔍
05/27/2021 +0 days 🔍
05/29/2021 +2 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2021-20177 (🔍)
GCVE (CVE): GCVE-0-2021-20177
GCVE (VulDB): GCVE-100-175880

Entryinfo

Created: 05/27/2021 08:28
Updated: 05/29/2021 17:43
Changes: 05/27/2021 08:28 (40), 05/29/2021 17:43 (5)
Complete: 🔍
Cache ID: 216::103

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