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CVE-2023-4273 Detail

Description

A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.


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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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2023:6583
https://access.redhat.com/errata/RHSA-2023:6583
https://access.redhat.com/security/cve/CVE-2023-4273 Third Party Advisory 
https://access.redhat.com/security/cve/CVE-2023-4273 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2221609 Issue Tracking  Patch  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2221609 Issue Tracking  Patch  Third Party Advisory 
https://dfir.ru/2023/08/23/cve-2023-4273-a-vulnerability-in-the-linux-exfat-driver/ Exploit  Third Party Advisory 
https://dfir.ru/2023/08/23/cve-2023-4273-a-vulnerability-in-the-linux-exfat-driver/ Exploit  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/
https://security.netapp.com/advisory/ntap-20231027-0002/
https://www.debian.org/security/2023/dsa-5480
https://www.debian.org/security/2023/dsa-5492

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  
CWE-121 Stack-based Buffer Overflow Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

13 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-4273
NVD Published Date:
08/09/2023
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.