CVE-2017-13722

Description

In the pcfGetProperties function in bitmap/pcfread.c in libXfont through 1.5.2 and 2.x before 2.0.2, a missing boundary check (for PCF files) could be used by local attackers authenticated to an Xserver for a buffer over-read, for information disclosure or a crash of the X server.

Category

7.1
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory x.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=672bb944311392e2415b39c0d63b1e1902905bcd third party advisory patch
http://www.debian.org/security/2017/dsa-3995 vendor advisory
https://www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2 vendor advisory
https://security.gentoo.org/glsa/201711-08 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1500693 issue tracking
https://bugzilla.suse.com/show_bug.cgi?id=1049692 issue tracking

Frequently Asked Questions

What is the severity of CVE-2017-13722?
CVE-2017-13722 has been scored as a high severity vulnerability.
How to fix CVE-2017-13722?
To fix CVE-2017-13722, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-13722 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-13722 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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