Linux Kernel up to 5.12.12 Network Traffic ll_temac_main.c buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.12.12 and classified as critical. This impacts an unknown function of the file drivers/net/ethernet/xilinx/ll_temac_main.c of the component Network Traffic Handler. The manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2021-38207. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.12.12 (Operating System) and classified as critical. This issue affects an unknown part of the file drivers/net/ethernet/xilinx/ll_temac_main.c of the component Network Traffic Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.

The weakness was published 08/09/2021 as c364df2489b8ef2f5e3159b1dff1ff1fdb16040d. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-38207. Technical details are known, but no exploit is available.

Upgrading to version 5.12.13 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 github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: No
Local: No
Remote: Yes

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 5.12.13
Patch: github.com

Timelineinfo

08/08/2021 🔍
08/09/2021 +1 days 🔍
08/09/2021 +0 days 🔍
08/14/2021 +5 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: c364df2489b8ef2f5e3159b1dff1ff1fdb16040d
Status: Confirmed

CVE: CVE-2021-38207 (🔍)
GCVE (CVE): GCVE-0-2021-38207
GCVE (VulDB): GCVE-100-180365

Entryinfo

Created: 08/09/2021 07:04
Updated: 08/14/2021 09:52
Changes: 08/09/2021 07:04 (44), 08/14/2021 09:51 (2), 08/14/2021 09:52 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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