Vulnerability Details : CVE-2023-39198

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.
Published 2023-11-09 20:15:09
Updated 2024-09-13 19:15:14
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionGain privilegeDenial of service

Products affected by CVE-2023-39198

Exploit prediction scoring system (EPSS) score for CVE-2023-39198

EPSS FAQ
0.38%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-39198

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.4
 MEDIUM CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
0.5
5.9
 NIST
7.5
 HIGH CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
0.8
6.0
 Red Hat, Inc.

CWE ids for CVE-2023-39198

  • The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)

References for CVE-2023-39198

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