CVE-2025-26599

March 10, 2025, 1:15 p.m.

7.8
High

Description

An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later.

Product(s) Impacted

Vendor Product Versions
Tigervnc
  • Tigervnc
  • -
X.org
  • X Server
  • Xwayland
  • -
  • -
Redhat
  • Enterprise Linux
  • 7.0, 8.0, 9.0

Weaknesses

CWE-824
Access of Uninitialized Pointer
The product accesses or uses a pointer that has not been initialized.

*CPE(s)

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a tigervnc tigervnc - / / / / / / /
a x.org x_server - / / / / / / /
a x.org xwayland - / / / / / / /
o redhat enterprise_linux 7.0 / / / / / / /
o redhat enterprise_linux 8.0 / / / / / / /
o redhat enterprise_linux 9.0 / / / / / / /

CVSS Score

7.8 / 10

CVSS Data

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • View Vector String

    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Date

  • Published: Feb. 25, 2025, 4:15 p.m.
  • Last Modified: March 10, 2025, 1:15 p.m.

Status : Modified

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

secalert@redhat.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.