CVE-2013-7439

Name: CVE-2013-7439
Creator: NVD / NIST
Published: 2015-04-16T14:59:00.07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.28%

Last modified Jun 17, 2026

CVE-2013-7439 is a vulnerability of currently unknown severity. Multiple off-by-one errors in the (1) MakeBigReq and (2) SetReqLen macros in include/X11/Xlibint.h in X11R6.x and libX11 before 1.6.0 allow remote attackers to have unspecified impact via a crafted request, which triggers a buffer overflow.. EPSS estimates a 4.28% chance of exploitation in the next 30 days.

Description

Multiple off-by-one errors in the (1) MakeBigReq and (2) SetReqLen macros in include/X11/Xlibint.h in X11R6.x and libX11 before 1.6.0 allow remote attackers to have unspecified impact via a crafted request, which triggers a buffer overflow.

Metrics

EPSS Probability

4.28%

89.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-189

Affected Software

Vendor	Product	Versions
X.Org	Libx11	1.0.1
X.Org	Libx11	1.0.2
X.Org	Libx11	1.0.3
X.Org	Libx11	1.1
X.Org	Libx11	1.1.4
X.Org	Libx11	1.1.5
X.Org	Libx11	1.1.6
X.Org	Libx11	1.1.99.1
X.Org	Libx11	1.1.99.2
X.Org	Libx11	1.2
X.Org	Libx11	1.2.1
X.Org	Libx11	1.2.2
X.Org	Libx11	1.3
X.Org	Libx11	1.3.1
X.Org	Libx11	1.3.2
X.Org	Libx11	1.3.3
X.Org	Libx11	1.3.4
X.Org	Libx11	1.3.5
X.Org	Libx11	1.3.6
X.Org	Libx11	1.3.99.901
X.Org	Libx11	1.3.99.902
X.Org	Libx11	1.3.99.903
X.Org	Libx11	1.4.0
X.Org	Libx11	1.4.1
X.Org	Libx11	1.4.2
X.Org	Libx11	1.4.3
X.Org	Libx11	1.4.4
X.Org	Libx11	1.4.99.901
X.Org	Libx11	1.4.99.902
X.Org	Libx11	1.5.0
X.Org	Libx11	1.5.99.901
X.Org	Libx11	1.5.99.902
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	14.10
Debian	Debian Linux	7.0
X.Org	X11	6.0
X.Org	X11	6.1
X.Org	X11	6.3
X.Org	X11	6.4
X.Org	X11	6.5.1
X.Org	X11	6.6
X.Org	X11	6.7
X.Org	X11	6.8.0
X.Org	X11	6.8.1
X.Org	X11	6.8.2
X.Org	X11	6.9

References

http://lists.x.org/archives/xorg-announce/2015-April/002561.htmlPatch, Vendor Advisory
http://seclists.org/oss-sec/2015/q2/81Third Party Advisory, VDB Entry
http://www.debian.org/security/2015/dsa-3224Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.securityfocus.com/bid/73962Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2568-1Third Party Advisory
https://bugs.freedesktop.org/show_bug.cgi?id=56508Issue Tracking
http://lists.x.org/archives/xorg-announce/2015-April/002561.htmlPatch, Vendor Advisory
http://seclists.org/oss-sec/2015/q2/81Third Party Advisory, VDB Entry
http://www.debian.org/security/2015/dsa-3224Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.securityfocus.com/bid/73962Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2568-1Third Party Advisory
https://bugs.freedesktop.org/show_bug.cgi?id=56508Issue Tracking

Timeline

Published: Apr 16, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-7439?

How severe is CVE-2013-7439?

Severity scoring for CVE-2013-7439 is pending analysis. The EPSS model estimates a 4.28% probability of exploitation in the next 30 days.

How do I fix CVE-2013-7439?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-7439?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST