Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Ubuntu Linux | 10.04 |
| Debian | Debian Linux | 7.0 |
| X | Libxfont | <= 1.4.8 |
References
- 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
FAQ
What is CVE-2015-1803?
CVE-2015-1803 is a vulnerability with a CVSS score of 8.5 (HIGH). 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 us...
How severe is CVE-2015-1803?
CVE-2015-1803 has been rated HIGH with a CVSS base score of 8.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-1803?
Check the references section above for vendor advisories and patch information. Affected products include: Canonical Ubuntu Linux, Debian Debian Linux, X Libxfont.