CVE-2013-4396

Description

Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted ImageText request that triggers memory-allocation failure.

Category

6.5
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.57% Top 20%
Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory x.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-updates/2013-10/msg00056.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-1426.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2013-10/msg00060.html vendor advisory
http://www.debian.org/security/2013/dsa-2784 vendor advisory
http://www.ubuntu.com/usn/USN-1990-1 vendor advisory
http://www.securityfocus.com/bid/62892 vdb entry
http://openwall.com/lists/oss-security/2013/10/08/6 mailing list
https://bugzilla.redhat.com/show_bug.cgi?id=1014561 patch
http://lists.x.org/archives/xorg-announce/2013-October/002332.html vendor advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2013-4396?
CVE-2013-4396 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4396?
To fix CVE-2013-4396, 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-2013-4396 being actively exploited in the wild?
It is possible that CVE-2013-4396 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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