CVE-2025-26599

Publication date 25 February 2025

Last updated 17 March 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
xorg 24.10 oracular
Not affected
24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
xorg-hwe-16.04 24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
16.04 LTS xenial
Not affected
xorg-hwe-18.04 24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
xorg-server 24.10 oracular
Fixed 2:21.1.13-2ubuntu1.2
24.04 LTS noble
Fixed 2:21.1.12-1ubuntu1.2
22.04 LTS jammy
Fixed 2:21.1.4-2ubuntu1.7~22.04.13
20.04 LTS focal
Fixed 2:1.20.13-1ubuntu1~20.04.19
18.04 LTS bionic
16.04 LTS xenial
xorg-server-hwe-16.04 24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
16.04 LTS xenial
xorg-server-hwe-18.04 24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
xwayland 24.10 oracular
Fixed 2:24.1.2-1ubuntu0.4
24.04 LTS noble
Fixed 2:23.2.6-1ubuntu0.4
22.04 LTS jammy
Fixed 2:22.1.1-1ubuntu0.17
20.04 LTS focal Not in release

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Notes

mdeslaur

xorg server is actually the xorg-server package the xorg package only contains docs xwayland package contains parts of xorg-server

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-7299-1
    • X.Org X Server vulnerabilities
    • 25 February 2025
    • USN-7299-2
    • X.Org X Server vulnerabilities
    • 10 March 2025
    • USN-7299-4
    • X.Org X Server regression
    • 17 March 2025

Other references