CVE-2023-1859

Medium

A use-after-free flaw was found in xen_9pfs_front_removet in net/9p/trans_xen.c in Xen transport for 9pfs in the Linux Kernel. This flaw could allow a local attacker to crash the system due to a race problem, possibly leading to a kernel information leak.

Package Linux Kernel
Published 2023-05-17
Last modified 2025-03-18
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

4.7

out of 10
Medium
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-416

CVE-2023-1859 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

1 total

Frequently asked questions

  • What is CVE-2023-1859?

    CVE-2023-1859 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2023-1859 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-1859?

    CVE-2023-1859 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2023-1859?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-1859 patch availability.

  • Is CVE-2023-1859 actively exploited?

    No. CVE-2023-1859 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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