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CVE-2023-28464

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Date: March 31, 2023

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.

Language: C

Severity Score

Related Resources (8)

https://security.netapp.com/advisory/ntap-20230517-0004/
https://nvd.nist.gov/vuln/detail/CVE-2023-28464
https://lore.kernel.org/lkml/20230309074645.74309-1-wzhmmmmm%40gmail.com/
https://lore.kernel.org/lkml/20230309074645.74309-1-wzhmmmmm@gmail.com/
https://access.redhat.com/security/cve/CVE-2023-28464
https://www.openwall.com/lists/oss-security/2023/03/28/2
https://www.openwall.com/lists/oss-security/2023/03/28/3
https://www.mend.io/vulnerability-database/CVE-2023-28464

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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