DEBIAN-CVE-2026-56002

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Source
https://security-tracker.debian.org/tracker/CVE-2026-56002
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56002.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-56002
Upstream
Published
2026-07-08T10:16:23Z
Modified
2026-09-14T17:03:20Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A heap bufferflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8  allows attackers authenticated as X client to execute code within the X server.

References

Affected packages

Debian:12 / libxfont

Package

Name
libxfont
Purl
pkg:deb/debian/libxfont?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.0.6-1+deb12u1

Affected versions

1:2.*
1:2.0.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56002.json"

Debian:13 / libxfont

Package

Name
libxfont
Purl
pkg:deb/debian/libxfont?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.0.6-1+deb13u1

Affected versions

1:2.*
1:2.0.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56002.json"

Debian:14 / libxfont

Package

Name
libxfont
Purl
pkg:deb/debian/libxfont?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.0.8-1

Affected versions

1:2.*
1:2.0.6-1
1:2.0.6-1+hurd.1
1:2.0.6-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56002.json"