Linux Kernel up to 5.8.14 fbcon buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.8.14. Affected is an unknown function of the component fbcon. Performing a manipulation results in buffer overflow. This vulnerability is reported as CVE-2020-28915. The attack requires a local approach. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 5.8.14 (Operating System). This affects some unknown processing of the component fbcon. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality.

The weakness was disclosed 11/18/2020 as CID-6735b4632def. It is possible to read the advisory at bugzilla.suse.com. This vulnerability is uniquely identified as CVE-2020-28915. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 5.8.15 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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 5.8.15
Patch: git.kernel.org

Timelineinfo

11/18/2020 🔍
11/18/2020 +0 days 🔍
11/18/2020 +0 days 🔍
12/08/2020 +20 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: CID-6735b4632def
Status: Confirmed

CVE: CVE-2020-28915 (🔍)
GCVE (CVE): GCVE-0-2020-28915
GCVE (VulDB): GCVE-100-165087

Entryinfo

Created: 11/18/2020 13:36
Updated: 12/08/2020 16:27
Changes: 11/18/2020 13:36 (43), 12/08/2020 16:24 (5), 12/08/2020 16:27 (18)
Complete: 🔍
Cache ID: 216::103

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