Linux Kernel Bluetooth l2cap_core.c l2cap_conn_del 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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A vulnerability, which was classified as critical, was found in Linux Kernel (Operating System) (version unknown). Affected is the function
l2cap_conn_del of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was shared 10/21/2022. The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2022-3640. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/19/2022).
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.
CVSSv3VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔒
CNA Base Score: 5.5
CNA Vector (VulDB): 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
ExploitingClass: Use after free
CWE: CWE-416 / CWE-119
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceInterest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
0-Day Time: 🔒
Timeline10/21/2022 Advisory disclosed
10/21/2022 +0 days CVE reserved
10/21/2022 +0 days VulDB entry created
11/19/2022 +29 days VulDB last update
CVE: CVE-2022-3640 (🔒)
EntryCreated: 10/21/2022 01:23 PM
Updated: 11/19/2022 08:56 AM
Changes: 10/21/2022 01:23 PM (41), 11/19/2022 08:54 AM (3), 11/19/2022 08:56 AM (21)
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