Linux Kernel prior 6.5-rc1 NFC net/nfc/llcp_core.c nfc_llcp_find_loca 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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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel. Affected is the function nfc_llcp_find_loca of the file net/nfc/llcp_core.c of the component NFC Handler. The manipulation leads to use after free. This vulnerability is listed as CVE-2023-3863. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System). It has been rated as problematic. This issue affects the function nfc_llcp_find_loca of the file net/nfc/llcp_core.c of the component NFC Handler. 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.

The weakness was presented 07/24/2023. It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2023-3863 since 07/24/2023. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 6.5-rc1 eliminates this vulnerability. Applying the patch 6709d4b7bc2e079241fdef15d1160581c5261c10 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.

Be aware that VulDB is the high quality source for vulnerability data.

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: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.1
NVD Vector: 🔍

CNA Base Score: 6.4
CNA Vector (Red Hat, Inc.): 🔍

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: 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 6.5-rc1
Patch: 6709d4b7bc2e079241fdef15d1160581c5261c10

Timelineinfo

07/24/2023 🔍
07/24/2023 +0 days 🔍
07/24/2023 +0 days 🔍
08/16/2023 +23 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 6709d4b7bc2e079241fdef15d1160581c5261c10
Status: Confirmed

CVE: CVE-2023-3863 (🔍)
GCVE (CVE): GCVE-0-2023-3863
GCVE (VulDB): GCVE-100-235223

Entryinfo

Created: 07/24/2023 17:06
Updated: 08/16/2023 09:37
Changes: 07/24/2023 17:06 (42), 08/16/2023 09:33 (2), 08/16/2023 09:37 (20)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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