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Vulnerability record · CVE-2015-1803 · published 20 March 2015

CVE-2015-1803: Canonical ubuntu linux vulnerability

Canonical · Ubuntu Linux

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 handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.

8.5 CVSS 2.0 High EPSS 4.9% · top 8.2%
8.5CVSS 2.0 base score
4.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
32References
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 handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) 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

3 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://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/73280
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://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/73280
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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Source: NIST National Vulnerability Database (record CVE-2015-1803), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.