Vulnerability Report

CVE-2013-4396

Title: X X.Org X11 RCE

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2013-4396.

CWE Category CWE-399

Published Date Oct 10, 2013

Modified Date Apr 29, 2026

Exploit Status Not Found

Score 6.5 CVSS v2.0

Exploit Probability (EPSS)

1.97%

Vulnerability Summary

CVE-2013-4396: 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.

Impacted Vendors

x 1

Reference Links

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

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

6.5

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:S/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2013-4396 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

April 29, 2026 MODIFIED

Vulnerability data updated via NVD.

April 11, 2025 MODIFIED

Vulnerability data or affected products updated.

October 10, 2013 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected Stack

No specific products linked.