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Vulnerability record · CVE-2015-1804 · published 20 March 2015

CVE-2015-1804: Libxfont vulnerability

XX · Libxfont

The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly perform type conversion for metrics values, which allows remote authenticated users to cause a denial of service (out-of-bounds memory access) and possibly execute arbitrary code via a crafted BDF font file.

8.5 CVSS 2.0 High EPSS 5.0% · top 8.1% CWE-189 · CWE-189
8.5CVSS 2.0 base score
5.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
34References
17 Jun 2026Last modified by NVD

Description

The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly perform type conversion for metrics values, which allows remote authenticated users to cause a denial of service (out-of-bounds memory access) and possibly execute arbitrary code via a crafted BDF font file.

AV:N/AC:M/Au:S/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://advisories.mageia.org/MGASA-2015-0113.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00005.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00074.html
http://rhn.redhat.com/errata/RHSA-2015-1708.html
http://www.debian.org/security/2015/dsa-3194
http://www.mandriva.com/security/advisories?name=MDVSA-2015:145
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
http://www.securityfocus.com/bid/73279
http://www.securitytracker.com/id/1031935
http://www.ubuntu.com/usn/USN-2536-1
http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/ Vendor Advisory
https://security.gentoo.org/glsa/201507-21
http://advisories.mageia.org/MGASA-2015-0113.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00005.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00074.html
http://rhn.redhat.com/errata/RHSA-2015-1708.html
http://www.debian.org/security/2015/dsa-3194
http://www.mandriva.com/security/advisories?name=MDVSA-2015:145
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
http://www.securityfocus.com/bid/73279
http://www.securitytracker.com/id/1031935
http://www.ubuntu.com/usn/USN-2536-1
http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/ Vendor Advisory
https://security.gentoo.org/glsa/201507-21

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2007-5199Libxfont memory buffer overflow vulnerabilityA single byte overflow in catalogue.c in X.Org libXfont 1.3.1 allows remote attackers to have unspecified impact.EPSS 2.2%9.3CVE-2013-6462Libxfont memory buffer overflow vulnerabilityStack-based buffer overflow in the bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont 1.1 through 1.4.6 allows remote attackers to caus…EPSS 10%9.3CVE-2011-2895Freetype memory buffer overflow vulnerabilityThe LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3…EPSS 8.4%8.8CVE-2026-56002Libxfont heap-based buffer overflow vulnerabilityA heap bufferflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8  allows attackers authenticated as X client to exec…EPSS 0.56%8.8CVE-2026-56003Libxfont heap-based buffer overflow vulnerabilityA heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties() before libXf…EPSS 0.62%8.8CVE-2026-56001Libxfont heap-based buffer overflow vulnerabilityA heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the…EPSS 0.62%8.5CVE-2015-1803Canonical ubuntu linux vulnerabilityThe bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps i…EPSS 4.9%8.5CVE-2015-1802Libxfont memory buffer overflow vulnerabilityThe bdfReadProperties function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 allows remote authenticated users to cause a…EPSS 4.9%

Source: NIST National Vulnerability Database (record CVE-2015-1804), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.