Linux Kernel up to 6.2.9 net/bluetooth/hci_conn.c hci_conn_cleanup use after free
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.4 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, was found in Linux Kernel up to 6.2.9 (Operating System). This affects the function hci_conn_cleanup
of the file net/bluetooth/hci_conn.c. 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 summary by CVE is:
hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux kernel through 6.2.9 has a use-after-free (observed in hci_conn_hash_flush) because of calls to hci_dev_put and hci_conn_put. There is a double free that may lead to privilege escalation.
The weakness was shared 03/31/2023. It is possible to read the advisory at lore.kernel.org. This vulnerability is uniquely identified as CVE-2023-28464 since 03/15/2023. Technical details of the vulnerability are known, but there is no available exploit.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at lore.kernel.org.
The entries VDB-266215, VDB-266216, VDB-266217 and VDB-266218 are related to this item.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: lore.kernel.org
Timeline
03/15/2023 🔍03/31/2023 🔍
03/31/2023 🔍
04/21/2023 🔍
Sources
Vendor: kernel.orgAdvisory: lore.kernel.org
Status: Confirmed
CVE: CVE-2023-28464 (🔍)
See also: 🔍
Entry
Created: 03/31/2023 19:24Updated: 04/21/2023 08:27
Changes: 03/31/2023 19:24 (41), 04/21/2023 08:27 (11)
Complete: 🔍
Cache ID: 3:5DB:103
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