DEBIAN-CVE-2017-13720

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Source
https://security-tracker.debian.org/tracker/CVE-2017-13720
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2017-13720.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2017-13720
Upstream
Published
2017-10-11T17:29:00Z
Modified
2025-09-30T03:54:19Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.

References

Affected packages

Debian:11 / libxfont

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.0.1-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / libxfont

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.0.1-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / libxfont

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.0.1-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / libxfont

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.0.1-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}