Linux Kernel video4linux Driver em28xx_usb_probe use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel. This impacts the function em28xx_usb_probe of the component video4linux Driver. Executing a manipulation can lead to use after free. This vulnerability is handled as CVE-2022-3239. The attack can be executed remotely. There is not any exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (the affected version unknown). It has been declared as critical. This vulnerability affects the function em28xx_usb_probe of the component video4linux Driver. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A flaw use after free in the Linux kernel video4linux driver was found in the way user triggers em28xx_usb_probe() for the Empia 28xx based TV cards. A local user could use this flaw to crash the system or potentially escalate their privileges on the system.

The weakness was released 09/20/2022. The advisory is available at git.kernel.org. This vulnerability was named CVE-2022-3239 since 09/19/2022. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/20/2022).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

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Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

09/19/2022 🔍
09/20/2022 +1 days 🔍
09/20/2022 +0 days 🔍
10/20/2022 +30 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-3239 (🔍)
GCVE (CVE): GCVE-0-2022-3239
GCVE (VulDB): GCVE-100-209086

Entryinfo

Created: 09/20/2022 08:24
Updated: 10/20/2022 19:38
Changes: 09/20/2022 08:24 (41), 10/20/2022 19:38 (11)
Complete: 🔍
Cache ID: 216::103

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