CVE-2015-1803

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.

How to fix CVE-2015-1803

To remediate CVE-2015-1803, upgrade the affected package to a fixed version below.

• Debian/libxfont—upgrade to 1:1.5.1-1 or later

Is CVE-2015-1803 being exploited?

Low — EPSS is 2.3%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 1:1.5.1-1

References (1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2015-1803