Vulnerability Details : CVE-2024-21885

A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.
Published 2024-02-28 13:15:08
Updated 2024-09-16 16:15:13
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: OverflowExecute code

Products affected by CVE-2024-21885

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Exploit prediction scoring system (EPSS) score for CVE-2024-21885

EPSS FAQ
0.24%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2024-21885

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
 Red Hat, Inc. 2024-02-28

CWE ids for CVE-2024-21885

  • The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
    Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
  • A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
    Assigned by: secalert@redhat.com (Primary)

References for CVE-2024-21885

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