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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-52503 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix use-after-free vulnerability in amdtee_close_session There is a potential race condition in amdtee_close_session that may cause use-after-free in amdtee_open_session. For instance, if a session has refcount == 1, and one thread tries to free this session via: kref_put(&sess->refcount, destroy_session); the reference count will get decremented, and the next step would be to call destroy_session(). However, if in another thread, amdtee_open_session() is called before destroy_session() has completed execution, alloc_session() may return 'sess' that will be freed up later in destroy_session() leading to use-after-free in amdtee_open_session. To fix this issue, treat decrement of sess->refcount and removal of 'sess' from session list in destroy_session() as a critical section, so that it is executed atomically.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1680c82929bc14d706065f123dab77f2f1293116 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/1c95574350cd63bc3c5c2fa06658010768f2a0ce CVE, kernel.org Patch 
https://git.kernel.org/stable/c/60c3e7a00db954947c265b55099c21b216f2a05c CVE, kernel.org Patch 
https://git.kernel.org/stable/c/da7ce52a2f6c468946195b116615297d3d113a27 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/f4384b3e54ea813868bb81a861bf5b2406e15d8f CVE, kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-52503
NVD Published Date:
03/02/2024
NVD Last Modified:
12/10/2024
Source:
kernel.org