CVE-2013-7439 Memory corruption in n/a

What is CVE-2013-7439?

CVE-2013-7439 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 16 Apr 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-189

Which versions are affected by CVE-2013-7439?

It affects 4 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, X.org Libx11, X.org X11.

How do I fix CVE-2013-7439?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2013-7439 being exploited?

There is no known exploitation of CVE-2013-7439 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2013-7439, DLA-199-1, DSA-3224-1, GHSA-rq5m-5v65-q84q, SUSE-SU-2015:1334-1, UBUNTU-CVE-2013-7439 and 1 more.