CVE-2013-7439

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.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 2.14% Top 20%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory x.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-2568-1 third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.securityfocus.com/bid/73962 vdb entry third party advisory
http://www.debian.org/security/2015/dsa-3224 third party advisory vendor advisory
http://seclists.org/oss-sec/2015/q2/81 mailing list vdb entry third party advisory
http://lists.x.org/archives/xorg-announce/2015-April/002561.html mailing list patch vendor advisory
https://bugs.freedesktop.org/show_bug.cgi?id=56508 issue tracking

Frequently Asked Questions

What is the severity of CVE-2013-7439?
CVE-2013-7439 has been scored as a high severity vulnerability.
How to fix CVE-2013-7439?
To fix CVE-2013-7439, 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-2013-7439 being actively exploited in the wild?
It is possible that CVE-2013-7439 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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