CVE-2025-26601

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-26601
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-26601.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-26601
Related
Published
2025-02-25T16:15:39Z
Modified
2025-04-10T20:59:57.365692Z
Downstream
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers.

References

Affected packages

Debian:11 / xorg-server

Package

Name
xorg-server
Purl
pkg:deb/debian/xorg-server?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.20.11-1+deb11u15

Affected versions

2:1.*

2:1.20.11-1
2:1.20.11-1+deb11u1
2:1.20.11-1+deb11u2
2:1.20.11-1+deb11u3
2:1.20.11-1+deb11u4
2:1.20.11-1+deb11u5
2:1.20.11-1+deb11u6
2:1.20.11-1+deb11u7
2:1.20.11-1+deb11u8
2:1.20.11-1+deb11u9
2:1.20.11-1+deb11u10
2:1.20.11-1+deb11u11
2:1.20.11-1+deb11u12
2:1.20.11-1+deb11u13
2:1.20.11-1+deb11u14

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / xorg-server

Package

Name
xorg-server
Purl
pkg:deb/debian/xorg-server?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:21.1.7-3+deb12u9

Affected versions

2:21.*

2:21.1.7-3
2:21.1.7-3+deb12u1
2:21.1.7-3+deb12u2
2:21.1.7-3+deb12u3
2:21.1.7-3+deb12u4
2:21.1.7-3+deb12u5
2:21.1.7-3+deb12u6
2:21.1.7-3+deb12u7
2:21.1.7-3+deb12u8

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / xorg-server

Package

Name
xorg-server
Purl
pkg:deb/debian/xorg-server?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:21.1.16-1

Affected versions

2:21.*

2:21.1.7-3
2:21.1.8-1
2:21.1.9-1
2:21.1.9-1+hurd.1
2:21.1.10-1
2:21.1.11-1
2:21.1.11-2
2:21.1.11-3
2:21.1.12-1
2:21.1.13-1
2:21.1.13-2
2:21.1.13-3
2:21.1.13-3.1
2:21.1.14-1
2:21.1.14-2
2:21.1.15-1
2:21.1.15-2
2:21.1.15-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / xwayland

Package

Name
xwayland
Purl
pkg:deb/debian/xwayland?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2:22.*

2:22.1.9-1

2:23.*

2:23.1.0-1
2:23.1.1-1
2:23.2.0-1
2:23.2.1-1
2:23.2.2-1
2:23.2.3-1
2:23.2.4-1
2:23.2.6-1

2:24.*

2:24.0.99.901-1
2:24.1.0-1
2:24.1.2-1
2:24.1.3-1
2:24.1.4-1
2:24.1.4-2
2:24.1.4-3
2:24.1.5-1
2:24.1.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / xwayland

Package

Name
xwayland
Purl
pkg:deb/debian/xwayland?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:24.1.6-1

Affected versions

2:22.*

2:22.1.9-1

2:23.*

2:23.1.0-1
2:23.1.1-1
2:23.2.0-1
2:23.2.1-1
2:23.2.2-1
2:23.2.3-1
2:23.2.4-1
2:23.2.6-1

2:24.*

2:24.0.99.901-1
2:24.1.0-1
2:24.1.2-1
2:24.1.3-1
2:24.1.4-1
2:24.1.4-2
2:24.1.4-3
2:24.1.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}