Linux Kernel up to 6.0.9 dvbdev.c dvb_register_device 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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8.8$5k-$25k0.13

A vulnerability was found in Linux Kernel up to 6.0.9 (Operating System) and classified as very critical. Affected by this issue is the function dvb_register_device of the file drivers/media/dvb-core/dvbdev.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvbdev.c has a use-after-free, related to dvb_register_device dynamically allocating fops.

The weakness was presented 11/25/2022. The advisory is available at lore.kernel.org. This vulnerability is handled as CVE-2022-45884 since 11/25/2022. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 11/25/2022).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

Type

Vendor

Name

License

  • open-source

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
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: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

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: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/25/2022 Advisory disclosed
11/25/2022 +0 days CVE reserved
11/25/2022 +0 days VulDB entry created
11/25/2022 +0 days VulDB last update

Sourcesinfo

Vendor: kernel.org

Advisory: lore.kernel.org
Status: Confirmed

CVE: CVE-2022-45884 (🔒)

Entryinfo

Created: 11/25/2022 08:22 AM
Changes: 11/25/2022 08:22 AM (39)
Complete: 🔍

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